Found 500 13-letter words starting with I
Highest Scrabble Score
The highest scoring 13-letter word starting with I in Scrabble:
ISOCARBOXAZID34 ptsHighest Words With Friends Score
The highest scoring 13-letter word starting with I in WWF:
ISOCARBOXAZID36 ptsAbout 13-Letter Words Starting With I
This list contains valid 13-letter words that begin with I. Longer words score higher in Scrabble due to premium tiles and the 50-point bingo bonus. Each word links to its definition page with anagrams and game scores.
13-Letter Words Starting With I
isocarboxazid34isoalloxazine29incentivizing28inexhaustibly28inexpensively28inflexibility28inquisitively28ichthyofaunae27ichthyofaunal27ichthyofaunas27immortalizing27incognizances27individualize27ineffectively27inexpressibly27infrequencies27immaterialize26immortalizers26immunizations26impeccability26imperceptibly26impersonalize26impracticably26inconsequence26inexpediently26infantilizing26injudiciously26insufficiency26intoxicatedly26ichthyologies25ichthyologist25immunotherapy25imperfectives25implicatively25improvability25inconceivably25inexhaustible25inexorability25inexpediences25inexperienced25infraspecific25inoffensively25insolubilized25immiscibility24immunochemist24impalpability24imperceivable24impermissibly24imperturbably24implacability24impoverishing24impractically24improbability24improvidently24inappreciably24ineffectually24inefficiently24inexperiences24inexplainable24inexpressible24informatively24insolubilizes24interproximal24isomerization24italicization24idealizations23illiquidities23imperceptible23impercipience23impoverishers23impracticable23improvidences23improvisatory23inconveniency23inconvertibly23indefatigably23indescribably23indifferently23industrialize23inefficacious23inexactitudes23inscriptively23interiorizing23internalizing23intersexually23invincibility23irrecoverably23imaginatively22immovableness22impassability22impassibility22impecuniosity22impecuniously22imperfections22imperfectness22imperishables22impermanently22impolitically22impossibility22incommunicado22incompetently22inconceivable22inconvincible22incorruptibly22indifferences22inexactnesses22inhomogeneity22inquisitional22inquisitorial22inspectorship22insupportably22insusceptibly22interjections22intermixtures22interspecific22intoxications22intraspecific22introjections22irreclaimably22irreplaceably22isochromosome22iconographers21iconographies21ideogrammatic21idiomatically21idiosyncratic21imagistically21impermanences21impermissible21imperturbable21inappreciable21incombustible21incompatibles21incompetences21incredibility21indehiscences21indeterminacy21indispensably21indissociably21individuality21indomethacins21ineducability21ineffableness21inevitability21infallibility21infeasibility21infectivities21informatorily21inhospitality21instinctively21instructively21interactively21interbehavior21interdiffused21interworkings21intrathecally21invariability21invectiveness21inviolability21irretrievably21isochronously21ideologically20immateriality20immunogenetic20immunological20impassiveness20impassivities20impersonality20impertinently20imponderables20importunately20improvisation20improvisatore20improvisatori20improvisators20impulsiveness20impulsivities20inadvertently20incandescence20incapacitated20incommodities20inconsecutive20inconsistency20incontestably20inconvenience20inconvertible20incorporative20incorporeally20incrementally20incriminatory20indefatigable20independently20indescribable20individualism20inflammations20inflorescence20influenceable20infuriatingly20inhabitancies20injuriousness20inobservances20inopportunely20insociability20intemperately20interchanging20intercompared20intercropping20interdiffuses20interepidemic20interinvolved20intermittency20interoceptive20interpandemic20intrathoracic20introspective20investigative20investigatory20iontophoretic20irrecoverable20irrepressibly20irresponsibly20isometrically20isosmotically20ignominiously19immanentistic19immaterialism19immunosorbent19immutableness19imperialistic19impertinences19impreciseness19impressionism19imprisonments19improprieties19inadvertences19inappropriate19inattentively19incalescences19incapableness19incapacitates19incongruently19incongruously19inconspicuous19incorruptible19incredulously19independences19indisciplined19indistinctive19individuating19ineligibility19inferentially19influentially19infringements19inhomogeneous19inorganically19insensitively19insensitivity19insignificant19inspiritingly19insufflations19insupportable19insusceptible19intangibility19integrability19integumentary19intemperances19interchangers19intercommunal19intercompares19interferogram19interinvolves19intermarrying19intermembrane19interstratify19intradermally19intravenously19intumescences19inveiglements19inventiveness19inventorially19involuntarily19irksomenesses19irreclaimable19irreplaceable19idiomaticness18illocutionary18imitativeness18immediateness18immigrational18immoderations18immortalising18immunogeneses18immunogenesis18immunologists18impersonating18impregnations18inactivations18incandescents18incarcerating18incendiarisms18inclusiveness18incongruences18incontinently18incorporating18incorrigibles18incriminating18indeterminism18indiscernible18indisciplines18indispensable18indissociable18individualise18individualist18individuation18infinitesimal18inflationisms18informalities18informational18infotainments18infusibleness18inhabitations18inhumannesses18insatiability18insectivorous18insensibility18instinctually18interconverts18interdepended18interfamilial18interferences18intergalactic18intergrafting18interknitting18interknotting18interlocutory18intermeddling18interobserver18interpolative18interracially18intragalactic18intraocularly18intravascular18intrinsically18introspecting18invertebrates18investigating18inviabilities18invisibleness18iontophoreses18iontophoresis18ipsilaterally18irrelevancies18irretrievable18isostatically18illiberalisms17immaterialist17immensenesses17immortalities17imperiousness17impersonation17impersonators17impetuosities17impetuousness17implantations17importunities17impressionist17incarceration17incarnadining17inclinometers17inconsistence17inconsonances17inconstancies17incontestable17incontinences17incorporation17incorporators17incorrectness17incorruptions17incorruptness17incrimination17indigestibles17indoctrinated17industriously17ingrownnesses17inoperculates17inscriptional17insinuatingly17inspectorates17intelligently17interbreeding17interceptions17interconnects17intercortical17interdentally17interestingly17interindustry17interlacement17interlayering17intermeddlers17intermediated17intermetallic17intermingling17intermittence17interoceptors17interoperable17interparticle17interpermeate17interpleading17interpretable17interrogative17interrogatory17interruptible17intertropical17intertwisting17intracerebral17intramuscular17introgressive17introspection17intussuscepts17invaginations17invalidations17investigation17investigators17invidiousness17invigilations17invigorations17irascibleness17irreligiously17irrepressible17irresponsible17isoelectronic17identicalness16ignoblenesses16illogicalness16illustriously16imaginariness16incardination16incongruities16inconsiderate16incredulities16indeterminate16indeterminist16indiscretions16indisposition16indoctrinates16indoctrinator16industrialism16infantilities16inferiorities16infertilities16infiltrations16inflationists16ingurgitating16inheritresses16instantaneity16instrumenting16insubordinate16intelligencer16intelligences16intensionally16intensiveness16intentionally16intercalating16intercrossing16interdictions16interdistrict16interdominion16interglacials16interlinearly16intermarginal16intermarriage16intermediates16interpellated16interplanting16interpleaders16interpolating16interspersing16interventions16intimidations16intransigence16intrepidities16introductions16introversions16intrusiveness16intuitiveness16inviolateness16invitationals16ironmongeries16irrationality16isoantibodies16illiberalness15illuminations15illusionistic15inanimateness15inarticulates15incantational15incinerations15inclinational15incrustations15incuriosities15