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