Here's what rhymes with significativity.
activity captivity nativity negativity creativity relativity declivity festivity acclivity conductivity selectivity insensitivity proclivity productivity exclusivity radioactivity superconductivity Words that almost rhyme with significativity
publicity complicity rusticity elasticity toxicity felicity catholicity electricity simplicity specificity eccentricity plasticity domesticity periodicity infelicity egocentricity ability agility dignity affinity fertility tyranny rapidity acidity bigotry debility rickety trinity turbidity cheerily bigamy billowy timothy privily hostility mobility utility validity vicinity antiquity capability divinity nobility symmetry cheerfully feasibility rigidity viability vividly antipathy busily chivalry civility minutely salinity simile solidity timidity volatility distally ductility epitome fixity fragility litany prettily sociability sublimity timidly versatility docility senility villainy virility dismally tearfully wittily abysmally dizzily finicky willowy possibility sympathy availability differently flexibility ministry conspiracy officially applicability infinity morbidity visually asymmetry facsimile femininity futility irritability symphony alkalinity fearfully fluidity indignity polygamy wilfully admissibility amiability calligraphy distantly epiphany fitfully inviolability invisibility reversibility ritually servility signally willfully divisibility frigidity guiltily legibility placidity aborigine fiscally negotiability scurrility stolidity probability initially proximity reliability contingency humidity masculinity susceptibility visibly acceptability adaptability brilliancy brilliantly liquidity skillfully unanimity assiduously fearlessly magnanimity soliloquy wistfully blissfully inaccessibility judicially unofficially viciously affordability coherency contingently flippancy indivisibility malleability polyphony prolixity ambitiously auspiciously communicability diffidently flippantly efficiency sufficiently consistently deficiency explicitly consistency efficiently implicitly inherently sufficiency tranquillity compatibility indifferently indignantly malignancy persistently religiously suspiciously deliciously exigency hospitably improbability invalidity listlessly practicability stringency quizzically stringently responsibility artificially delinquency proficiency intermittently superficially irresponsibility predictably surreptitiously beneficially expeditiously inexplicably insistently invisibly resiliency incoherently minstrelsy pusillanimity inconsistency insufficiency inefficiency insufficiently irresistibly impracticability inconsistently inefficiently unpredictably immunodeficiency