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