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