Here's what rhymes with definitionists.
exhibitionists abolitionists prohibitionists coalitionists Words that almost rhyme with definitionists
militants timpanists silicates minuteness religionists villainous sycophants ambitiousness cymbalists indigenous diligence filaments vigilance wickedness dissonance ligaments mischievous omnipotence virulence dissidents syllabus umbilicus littleness minimised tinnitus traditionalists coreligionists fickleness nimbleness vertiginous visitants ministrants synthesis ambivalence antithesis cheerfulness limitless stimulants synchronous articulates sinfulness solicitous vividness fearlessness singleness brittleness symbolise wilfulness fearfulness legitimates willfulness bigamous gesticulates individuates repetitiousness winsomeness cheerlessness fitfulness assiduousness expeditiousness witlessness nutritiousness surreptitiousness participants stimulus equivalents magnificence frivolous meticulous asynchronous chivalrous felicitous particulates polygamous imprisonments listlessness religiousness epitomised precipitants victimised wistfulness epitomise shiftlessness stigmatise equivocates litigiousness skillfulness ridiculous equivalence unambiguous gingivitis predicaments legitimised grandiloquence blissfulness nonequivalents peristalsis nonparticipants geosynchronous infelicitous conjunctivitis