List of 5 Syllable Words Starting With ‘I’

Here is a list of 5 syllable words that start with ‘I.’ There is a total of 576 words in these tables. Each table is divided into two columns. The left column contains the five-syllable ‘I’ words, and the right column includes the syllables.

While making this table, we have removed those words that are no longer used in modern literary works. If you see any errors in this list, please let us know.

5 Syllable WordsSyllables
Icacinaceaeicac-i-na-ce-ae
Ichneumonidaeich-neu-mon-i-dae
Ichneumonoideaich-neu-mo-noi-dea
Ichthyobdellaich-thy-ob-del-la
Ichthyobdellidich-thy-ob-del-lid
Ichthyocephaliich-thyo-ceph-a-li
Ichthyodoruliteich-thyo-dor-u-lite
Ichthyologicalich-thy-ol-o-gy
Ichthyophagiich-thy-oph-a-gi
Ichthyophagistich-thy-oph-a-gist
Ichthyophagousich-thy-oph-a-gous
Ichthyopsidaich-thy-op-si-da
Ichthyornithesich-thy-or-ni-thes
Ichthyosauridaeich-thyo-sau-ri-dae
Ichthyotomiich-thy-ot-o-mi
Identicalityiden-ti-cal-i-ty
Identificationiden-ti-fi-ca-tion
Idioandrosporousid-io-an-drospo-rous
Idiocraciesid-i-oc-ra-cy
Idiocrasyid-i-oc-ra-sy
Idiocraticid-i-o-crat-ic
Idiographicid-i-o-graph-ic
Idiomaticid-i-o-mat-ic
Idiometerid-i-om-e-ter
Idiomorphicid-i-o-mor-phic
Idiopathicid-i-o-path-ic
Idiophanousid-i-oph-a-nous
Idiorrhythmismid-i-or-rhyth-mism
Ignominiousig-no-min-i-ous
Iguanodontiaigua-no-don-toi-dea
Iliopsoaticil-io-pso-at-ic
Illegitimateil-le-git-i-mate
Illiberalismil-lib-er-al-ism
Illiteraciesil-lit-er-a-cy
Illocutionaryil-lo-cu-tion-ary
Illuminatiil-lu-mi-na-ti
Illuminatingil-lu-mi-nat-ing
Illuminationil-lu-mi-na-tion
Illuminatismil-lu-mi-na-tism
Illuminatistil-lu-mi-na-tist
Illuminativeil-lu-mi-na-tive
Illuminatoil-lu-mi-na-to
Illustratoryil-lus-tra-to-ry
Illuviatedil-lu-vi-a-tion
Imaginationalimag-i-na-tion-al
Imbecilitiesim-be-cil-i-ty
Imidaclopridim-id-a-clo-prid
Imitationalim-i-ta-tion-al
Immaculacyim-mac-u-la-cy
Immanentizationim-ma-nent-iza-tion
Immarcescibleim-mar-ces-ci-ble
Immaterialim-ma-te-ri-al
Immaterialsim-ma-te-ri-als
Immediaciesim-me-di-a-cy
Immediatelyim-me-di-ate-ly
5 Syllable WordsSyllables
Immediatenessim-me-di-ate-ness
Immediatismim-me-di-a-tism
Immediatistim-me-di-a-tist
Immedicableim-med-i-ca-ble
Immemorialim-me-mo-ri-al
Immensurableim-men-su-ra-ble
Immethodicalim-me-thod-i-cal
Immigratoryim-mi-gra-to-ry
Immiserateim-mis-er-a-tion
Immitigableim-mit-i-ga-ble
Immoderacyim-mod-er-a-cy
Immoralityim-mo-ral-i-ty
Immortalisableim-mor-tal-iz-able
Immortalityim-mor-tal-i-ty
Immunizationim-mu-ni-za-tion
Immunoassayim-mu-no-as-say
Immunogenesisim-mu-no-gen-ic
Immunologicim-mu-nol-o-gy
Immunosorbentim-mu-no-sor-bent
Immunosuppressim-mu-no-sup-press
Impecunityim-pe-cu-ni-ty
Impedimentaim-ped-i-men-ta
Impedimentalim-ped-i-men-tal
Impenetrableim-pen-e-tra-ble
Imperativalim-per-a-ti-val
Imperatorshipim-per-a-tor-ship
Imperceptibleim-per-cep-ti-ble
Impercipienceim-per-cip-i-ence
Imperialismim-pe-ri-al-ism
Imperializeim-pe-ri-al-ize
Impermanencyim-per-ma-nen-cy
Impermissibilityim-per-mis-si-ble
Impersonalizationim-per-son-al-ize
Impertinenciesim-per-ti-nen-cy
Impertinentnessim-per-ti-nent-ness
Imperturbablenessim-per-turb-able-ness
Imperviableim-per-vi-a-ble
Impetratoryim-pe-tra-to-ry
Impetuosoim-pet-u-o-so
Implementaryim-ple-men-ta-ry
Implementationim-ple-men-ta-tion
Implicationalim-pli-ca-tion-al
Imponderabilityim-pon-der-a-ble
Importunacyim-por-tu-na-cy
Importunitiesim-por-tu-ni-ty
Impracticabilityim-prac-ti-ca-ble
Imprecatinglyim-pre-cat-ing-ly
Impresarialim-pre-sar-i-al
Impressionisticim-pres-sion-is-tic
Imprimaturaim-pri-ma-tu-ra
Impropriationim-pro-pri-a-tion
Impropriatorim-pro-pri-a-tor
Improprietiesim-pro-pri-e-ty
Improvisationim-pro-vi-sa-tion
Improvisatorim-prov-i-sa-tor
5 Syllable WordsSyllables
Impudicityim-pu-dic-i-ty
Imputationalim-pu-ta-tion-al
Inaccessibilityin-ac-ces-si-ble
Inaccuraciesin-ac-cu-ra-cy
Inadequaciesin-ad-e-qua-cy
Inadmissibilityin-ad-mis-si-ble
Inadvertenciesin-ad-ver-ten-cy
Inamoratoin-am-o-ra-to
Inapplicabilityin-ap-pli-ca-ble
Inappreciablein-ap-pre-cia-ble
Inappreciativein-ap-pre-cia-tive
Inappropriatein-ap-pro-pri-ate
Inarticulatein-ar-tic-u-late
Inaugurationin-au-gu-ra-tion
Incalculabilityin-cal-cu-la-ble
Incanestratoin-ca-ne-stra-to
Incapacitatein-ca-pac-i-tate
Incapacitiesin-ca-pac-i-ty
Incarceratedin-car-cer-at-ed
Incarcerationin-car-cer-a-tion
Incarceratorin-car-cer-a-tor
Incardinationin-car-di-na-tion
Incarnationistin-car-na-tion-ist
Incendiarismin-cen-di-a-rism
Incendiaristin-cen-di-a-rist
Incidentalistin-ci-den-tal-ist
Incidentallyin-ci-den-tal-ly
Incidentalnessin-ci-den-tal-ness
Incineratorin-cin-er-a-tor
Incipiativein-cip-i-a-tive
Incipiencyin-cip-i-en-cy
Incivilityin-ci-vil-i-ty
Inclinatoryin-cli-na-to-ry
Inclinometerin-cli-nom-e-ter
Inclusivityin-clu-siv-i-ty
Incombustibilityin-com-bus-ti-ble
Incommensuratein-com-men-su-rate
Incommisciblein-com-mis-ci-ble
Incommodiousin-com-mo-di-ous
Incommodityin-com-mod-i-ty
Incomparabilityin-com-pa-ra-ble
Incompatiblein-com-pat-i-ble
Incompetencyin-com-pe-ten-cy
Incomprehensionin-com-pre-hen-sion
Inconcinnityin-con-cin-ni-ty
Inconclusiblein-con-clu-si-ble
Inconformityin-con-for-mi-ty
Incongruitiesin-con-gru-i-ty
Inconscionablein-con-scio-na-ble
Inconsecutivein-con-sec-u-tive
Inconsequentiain-con-se-quen-tia
Inconsequentialin-con-se-quen-tial
Inconsiderablein-con-sid-er-able
Inconsideratein-con-sid-er-ate
Inconsistencyin-con-sis-ten-cy
5 Syllable WordsSyllables
Inconspicuousin-con-spic-u-ous
Incontaminatein-con-tam-i-nate
Incontinencyin-con-ti-nen-cy
Incontinentlyin-con-ti-nent-ly
Incontrollablein-con-trol-la-ble
Incontrovertiblein-con-tro-vert-ible
Inconvenienciesin-con-ve-nien-cy
Incorporatedin-cor-po-rat-ed
Incorporationin-cor-po-ra-tion
Incorporealin-cor-po-re-al
Incorrigibilityin-cor-ri-gi-ble
Incorruptiblenessin-cor-rupt-ible-ness
Incredulityin-cre-du-li-ty
Incrementalismin-cre-men-tal-ism
Incriminatorin-crim-i-na-tor
Inculpatoryin-cul-pa-to-ry
Incunabulain-cu-nab-u-lum
Incunabularin-cu-nab-u-lar
Incunabulistin-cu-nab-u-list
Incurvariidin-cur-var-i-id
Incurvariidaein-cur-va-ri-idae
Indaconitinein-da-con-i-tine
Indeciduatein-de-cid-u-ate
Indeciduousin-de-cid-u-ous
Indecipherablein-de-ci-pher-able
Indecomposablein-de-com-pos-able
Indefeasibilityin-de-fea-si-ble
Indefectibilityin-de-fec-ti-ble
Indefensibilityin-de-fen-si-ble
Indefinitudein-de-fin-i-tude
Indeflectiblein-de-flec-ti-ble
Indelicacyin-del-i-ca-cy
Indemnizationin-dem-ni-za-tion
Indemonstrablein-de-mon-stra-ble
Independencyin-de-pen-den-cy
Indestructibilityin-de-struc-ti-ble
Indeterminablein-de-ter-min-able
Indeterminatein-de-ter-mi-nate
Indeterminismin-de-ter-min-ism
Indexicallyin-dex-i-cal-ly
Indianaitein-di-an-a-ite
Indifferencyin-dif-fer-en-cy
Indifferentismin-dif-fer-ent-ism
Indigoferousin-di-gof-er-ous
Indisciplinablein-dis-ci-plin-able
Indiscoverablein-dis-cov-er-able
Indiscriminatein-dis-crim-i-nate
Indispositionin-dis-po-si-tion
Indissociablein-dis-so-cia-ble
Indissolubilityin-dis-sol-u-ble
Indistinguishabilityin-dis-tin-guish-able
Individualin-di-vid-u-al
Individuatein-di-vid-u-ate
Individuumin-di-vid-u-um
Indivisibilityin-di-vis-i-ble
5 Syllable WordsSyllables
Indologicalin-do-log-i-cal
Indomethacinin-do-meth-a-cin
Indomitabilityin-dom-i-ta-ble
Indubitabilityin-du-bi-ta-ble
Inductometerin-duc-tom-e-ter
Industrialisein-dus-tri-al-ise
Industrialismin-dus-tri-al-ism
Industrialistin-dus-tri-al-ist
Industrializein-dus-tri-al-ize
Industrialnessin-dus-tri-al-ness
Ineducabilityin-ed-u-ca-ble
Ineffectualin-ef-fec-tu-al
Inefficaciousin-ef-fi-ca-cious
Inefficacyin-ef-fi-ca-cy
Inefficienciesin-ef-fi-cien-cy
Ineligibilityin-el-i-gi-ble
Inequitablein-eq-ui-ta-ble
Ineradicabilityin-erad-i-ca-ble
Inestimablein-es-ti-ma-ble
Inevitabilityin-ev-i-ta-ble
Inevitablyin-ev-i-ta-bly
Inexactitudein-ex-ac-ti-tude
Inexorabilityin-ex-o-ra-ble
Inexpediencein-ex-pe-di-ence
Inexpedientin-ex-pe-di-ent
Inexperiencein-ex-pe-ri-ence
Inexpiablein-ex-pi-a-ble
Inexplicabilityin-ex-pli-ca-ble
Inexpugnablein-ex-pug-na-ble
Inextinguishablein-ex-tin-guish-able
Inextirpablein-ex-tir-pa-ble
Inextricabilityin-ex-tri-ca-ble
Infalliblenessin-fal-li-ble-ness
Infantilisticin-fan-ti-lis-tic
Infatuatedin-fat-u-at-ed
Infatuationin-fat-u-a-tion
Infatuatorin-fat-u-a-tor
Infectibilityin-fect-ibil-i-ty
Infectivitiesin-fec-tiv-i-ty
Infelicitiesin-fe-lic-i-ty
Infelicitousin-fe-lic-i-tous
Inferentiallyin-fer-en-tial-ly
Infibulationin-fib-u-la-tion
Infidelitiesin-fi-del-i-ty
Infiltrometerin-fil-trom-e-ter
Infinitivalin-fin-i-ti-val
Inflammatorilyin-flam-ma-to-ry
Informatorilyin-for-ma-to-ry
Infracostalesin-fra-cos-ta-lis
Infraspecificin-fra-spe-cif-ic
Infundibulain-fun-dib-u-lum
Infundibularin-fun-dib-u-lar
Infundibulatein-fun-dib-u-late
Infuriatingin-fu-ri-at-ing
Infusoriain-fu-so-ri-um
5 Syllable WordsSyllables
Infusorialin-fu-so-ri-al
Infusorianin-fu-so-ri-an
Infusoriformin-fu-so-ri-form
Infusorigenin-fu-so-ri-gen
Infusorioidin-fu-so-ri-oid
Ingenerablein-gen-er-a-ble
Ingeniosityin-ge-nios-i-ty
Ingenuitiesin-ge-nu-i-ty
Ingratiatingin-gra-ti-at-ing
Inhabitancyin-hab-i-tan-cy
Inhabitationin-hab-i-ta-tion
Inhabitivenessin-hab-i-tive-ness
Inharmoniousin-har-mo-ni-ous
Inhospitablein-hos-pi-ta-ble
Inhumanitiesin-hu-man-i-ty
Inimicablein-im-i-ca-ble
Inimicalnessin-im-i-cal-ness
Inimicitiousin-im-i-ci-tious
Inimitablein-im-i-ta-ble
Injucundityin-ju-cun-di-ty
Innocuityin-no-cu-i-ty
Innumerablein-nu-mer-a-ble
Inoculationin-oc-u-la-tion
Inoperablein-op-er-a-ble
Inoperativein-op-er-a-tive
Inordinacyin-or-di-na-cy
Inordinationin-or-di-na-tion
Inquietationin-qui-e-ta-tion
Insalubriousin-sa-lu-bri-ous
Insecticidalin-sec-ti-cid-al
Insecticolousin-sec-tic-o-lous
Insectivorain-sec-tiv-o-rae
Insectivorousin-sec-tiv-o-rous
Insectologyin-sec-tol-o-gy
Insecuritiesin-se-cu-ri-ty
Inseminatorin-sem-i-na-tor
Inseparabilityin-sep-a-ra-ble
Insessorialin-ses-so-ri-al
Insignificancein-sig-nif-i-cance
Insignificantin-sig-nif-i-cant
Insinuatingin-sin-u-at-ing
Insinuationin-sin-u-a-tion
Insinuendoin-sin-u-en-do
Insolubilizationin-sol-u-bi-lize
Inspectoralin-spec-to-ri-al
Inspirationistin-spi-ra-tion-ist
Inspiratoryin-spi-ra-to-ry
Instabilityin-sta-bil-i-ty
Instigatinglyin-sti-gat-ing-ly
Institutionalin-sti-tu-tion-al
Institutionaryin-sti-tu-tion-ary
Institutionisein-sti-tu-tion-ize
Instructorialin-struc-to-ri-al
Instrumentalismin-stru-men-tal-ism
Instrumentalistin-stru-men-tal-ist
5 Syllable WordsSyllables
Instrumentalizein-stru-men-tal-ize
Instrumentaryin-stru-men-ta-ry
Instrumentationin-stru-men-ta-tion
Instrumentatorin-stru-men-ta-tor
Insubordinatein-sub-or-di-nate
Insufficienciesin-suf-fi-cien-cy
Insultabilityin-sult-abil-i-ty
Insuperablein-su-per-a-ble
Insurrectionizein-sur-rec-tion-ize
Insusceptibilityin-sus-cep-ti-ble
Integrationistin-te-gra-tion-ist
Integumentalin-teg-u-men-tal
Intellectualin-tel-lec-tu-al
Intelligencerin-tel-li-genc-er
Intelligencyin-tel-li-gen-cy
Intelligentsiain-tel-li-gent-sia
Intelligibilityin-tel-li-gi-ble
Intensifierin-ten-si-fi-er
Intentionalismin-ten-tion-al-ism
Intentionallyin-ten-tion-al-ly
Interactionismin-ter-ac-tion-ism
Interactionistin-ter-ac-tion-ist
Interamnianin-ter-am-ni-an
Interannualin-ter-an-nu-al
Intercalaryin-ter-ca-la-ry
Intercellularin-ter-cel-lu-lar
Intercollegiatein-ter-col-le-giate
Intercolonialin-ter-co-lo-nial
Intercommonagein-ter-com-mon-age
Intercommunalin-ter-com-mu-nal
Intercommunionin-ter-com-mu-nion
Intercompanyin-ter-com-pa-ny
Interconnectedin-ter-con-nect-ed
Interconversionin-ter-con-ver-sion
Intercorporatein-ter-cor-po-rate
Intercorrelatein-ter-cor-re-late
Intercrystallinein-ter-crys-tal-line
Interculturalin-ter-cul-tur-al
Interdependencein-ter-de-pen-dence
Interdependentin-ter-de-pen-dent
Interdiffusein-ter-dif-fu-sion
Interdigitatein-ter-dig-i-tate
Interdominionin-ter-do-min-ion
Interelectronicin-ter-elec-tron-ic
Interestinglyin-ter-est-ing-ly
Interfacultyin-ter-fac-ul-ty
Interfamilialin-ter-fa-mil-ial
Interfamilyin-ter-fam-i-ly
Interferogramin-ter-fer-o-gram
Interferographin-ter-fer-o-graph
Interfluminalin-ter-flu-mi-nal
Interfluvialin-ter-flu-vi-al
Interfoliatein-ter-fo-li-ate
Intergalacticin-ter-ga-lac-tic
Intergenericin-ter-ge-ner-ic
5 Syllable WordsSyllables
Intergenomalin-ter-ge-no-mal
Intergradationin-ter-gra-da-tion
Intergranularin-ter-gran-u-lar
Interhemisphericin-ter-hemi-spher-ic
Interhospitalin-ter-hos-pi-tal
Interimisticin-ter-im-is-tic
Interindustryin-ter-in-dus-try
Interinfluencein-ter-in-flu-ence
Interiorisein-te-ri-or-ise
Interiorizationin-te-ri-or-ize
Interiornessin-te-ri-or-ness
Interjacencyin-ter-ja-cen-cy
Interjaculatein-ter-jac-u-late
Interjectionalin-ter-jec-tion-al
Interjectionaryin-ter-jec-tion-ary
Interjecturalin-ter-jec-tur-al
Interlacustrinein-ter-la-cus-trine
Interlaminarin-ter-lam-i-nar
Interlinealin-ter-lin-e-al
Interlinearyin-ter-lin-e-ary
Interlineatein-ter-lin-e-ate
Interlobularin-ter-lob-u-lar
Interlocutionin-ter-lo-cu-tion
Interlocutorin-ter-loc-u-tor
Interlocutressin-ter-loc-u-tress
Interlucationin-ter-lu-ca-tion
Interludialin-ter-lu-di-al
Intermedialin-ter-me-di-al
Intermediariesin-ter-me-di-ary
Intermediatein-ter-me-di-ate
Intermenstrualin-ter-men-stru-al
Intermetallicin-ter-me-tal-lic
Interminablein-ter-mi-na-ble
Intermitoticin-ter-mi-tot-ic
Intermittencyin-ter-mit-ten-cy
Intermundiain-ter-mun-di-um
Intermundialin-ter-mun-di-al
Internationalin-ter-na-tion-al
Internationalein-ter-na-tio-nale
Internuclearin-ter-nu-cle-ar
Internucleonin-ter-nu-cle-on
Internuncialin-ter-nun-ci-al
Internunciaryin-ter-nun-ci-ary
Internunciiin-ter-nun-ci-us
Interobserverin-ter-ob-serv-er
Interoceanicin-ter-oce-an-ic
Interoceptivein-ter-o-cep-tive
Interoceptorin-ter-o-cep-tor
Interoperatein-ter-op-er-ate
Interopercularin-ter-oper-cu-lar
Interoperculumin-ter-oper-cu-lum
Interorbitalin-ter-or-bit-al
Interpandemicin-ter-pan-dem-ic
Interparticlein-ter-par-ti-cle
Interpenetratein-ter-pen-e-trate
5 Syllable WordsSyllables
Interpersonalin-ter-per-son-al
Interplanetaryin-ter-plan-e-tary
Interpolaterin-ter-po-lat-er
Interpolationin-ter-po-la-tion
Interposinglyin-ter-pos-ing-ly
Interpositionin-ter-po-si-tion
Interpretationin-ter-pre-ta-tion
Interpretershipin-ter-pret-er-ship
Interprovincialin-ter-pro-vin-cial
Interproximalin-ter-prox-i-mal
Interpupillaryin-ter-pu-pil-lary
Interradiain-ter-ra-di-um
Interregionalin-ter-re-gion-al
Interrelatedin-ter-re-lat-ed
Interreligiousin-ter-re-li-gious
Interrogablein-ter-ro-ga-ble
Interrogationin-ter-ro-ga-tion
Interrogativein-ter-rog-a-tive
Interrogatorin-ter-ro-ga-tor
Interscholasticin-ter-scho-las-tic
Intersectionalin-ter-sec-tion-al
Intersegmentalin-ter-seg-men-tal
Intersensoryin-ter-sen-so-ry
Intersexualin-ter-sex-u-al
Interspeciesin-ter-spe-cif-ic
Interspersedlyin-ter-spers-ed-ly
Interstadialin-ter-sta-di-al
Interstimulusin-ter-stim-u-lus
Interstratifiedin-ter-strat-i-fied
Intersubjectivein-ter-sub-jec-tive
Interterminalin-ter-ter-mi-nal
Intertragianin-ter-tra-gi-an
Intertranslatabilityin-ter-trans-lat-able
Intertropicalin-ter-trop-i-cal
Intertwininglyin-ter-twin-ing-ly
Interventionismin-ter-ven-tion-ism
Intervertebralin-ter-ver-te-bral
Intervisibilitiesin-ter-vis-i-ble
Intervocalicin-ter-vo-cal-ic
Intervolutionin-ter-vo-lu-tion
Interwovennessin-ter-wo-ven-ness
Intestiniformin-tes-ti-ni-form
Intestinointestinalin-tes-ti-no-intestinal
Intestinovesicalin-tes-ti-no-vesical
Intichiumain-ti-chi-u-ma
Intimidatedin-tim-i-dat-ed
Intimidatingin-tim-i-dat-ing
Intitulationin-tit-u-la-tion
Intolerabilityin-tol-er-a-ble
Intoxicatedin-tox-i-cat-ed
Intoxicationin-tox-i-ca-tion
Intoxicativein-tox-i-ca-tive
Intrabionticin-tra-bi-on-tic
Intracardiacin-tra-car-di-ac
Intracellularin-tra-cel-lu-lar
5 Syllable WordsSyllables
Intracerebralin-tra-ce-re-bral
Intracompanyin-tra-com-pa-ny
Intracranialin-tra-cra-ni-al
Intragalacticin-tra-ga-lac-tic
Intramuscularin-tra-mus-cu-lar
Intransigentismin-tran-si-gent-ism
Intransitivizein-tran-si-tiv-ize
Intraocularin-tra-oc-u-lar
Intrapersonalin-tra-per-son-al
Intraspecificin-tra-spe-cif-ic
Intrathoracicin-tra-tho-rac-ic
Intravascularin-tra-vas-cu-lar
Intrinsicallyin-trin-si-cal-ly
Introductorilyin-tro-duc-to-ry
Intromissiblein-tro-mis-si-ble
Introspectionismin-tro-spec-tion-ism
Introversiblein-tro-ver-si-ble
Intuitionismin-tu-i-tion-ism
Intuitivismin-tu-i-tiv-ism
Intuitivistin-tu-i-tiv-ist
Intussusceptionin-tus-sus-cep-tion
Invaginationin-vag-i-na-tion
Invaliditiesin-val-id-i-ty
Inventoriablein-ven-to-ri-able
Invertebracyin-ver-te-bra-cy
Investigablein-ves-ti-ga-ble
Investigatablein-ves-ti-gat-able
Investigatorin-ves-ti-ga-tor
Inveteracyin-vet-er-a-cy
Inveteratenessin-vet-er-ate-ness
Invigoratingin-vig-o-rat-ing
Inviolabilityin-vi-o-la-ble
Inviolacyin-vi-o-la-cy
Invitationalin-vi-ta-tion-al
Invitatoriesin-vi-ta-to-ry
Involucriformin-vo-lu-cri-form
Invulnerabilityin-vul-ner-a-ble
Iodinophilio-din-oph-i-lous
Ionophoresesion-o-pho-re-sis
Iontophoresesion-to-pho-re-sis
Ipsedixitismip-se-dix-it-ism
Ipsilateralip-si-lat-er-al
Iridologiesir-i-dol-o-gy
Irradiationir-ra-di-a-tion
Irradicableir-rad-i-ca-ble
Irrationalismir-ra-tio-nal-ism
Irrealityir-re-al-i-ty
Irreconcilabilityir-rec-on-cil-able
Irrecoverableir-re-cov-er-able
Irrecusableir-re-cu-sa-ble
Irreductibleir-re-duc-ti-ble
Irrefragabilityir-re-fra-ga-ble
Irrelevanciesir-rel-e-van-cy
Irreparableir-rep-a-ra-ble
Irreproducibilityir-re-pro-duc-ible
5 Syllable WordsSyllables
Irresolubleir-re-sol-u-ble
Irresponsibilityir-re-spon-si-ble
Irrevocabilityir-rev-o-ca-ble
Irrigationalir-ri-ga-tion-al
Irrigationistir-ri-ga-tion-ist
Irrotationalir-ro-ta-tion-al
Isabelitais-a-be-li-ta
Iscarioticis-car-i-ot-ic
Ischioceriteis-chi-oc-er-ite
Ischiopoditeis-chi-op-o-dite
Isidiiferousisid-i-if-er-ous
Isidoreanis-i-do-ri-an
Islamophobeis-lam-o-pho-bia
Islandologyis-land-ol-o-gy
Isoalloxazineiso-al-lox-a-zine
Isocarboxazidiso-car-box-az-id
Isodiametriciso-di-a-met-ric
Isogenerataeiso-gen-er-a-tae
Isolabilityiso-la-bil-i-ty
Isoproterenoliso-pro-ter-e-nol
Isothiocyanateiso-thio-cy-a-nate
Istiophorusis-ti-oph-o-rus
Itacolumiteit-a-col-u-mite
Itinerariaitin-er-ar-i-um
Ixiaceaeix-i-a-ce-ae
Iztapalapaiz-ta-pa-la-pa