Here's what rhymes with infectivity.
inactivity passivity sensitivity objectivity subjectivity connectivity receptivity emissivity interactivity hyperactivity positivity reflexivity impassivity transitivity Words that almost rhyme with infectivity
ethnicity authenticity duplicity multiplicity synchronicity civilly stability typically inability instability visibility infertility motility sterility stupidity virginity avidity immobility cupidity gentility insipidity chillingly equability puerility edibility limpidity tepidity arability piggishly facility liability disability humility sensibility variability willingly rigidly durability iniquity suitability infallibility insensibility lucidity mimicry affability fallibility fittingly inflexibility intrepidity ubiquity wickedly gullibility hillbilly inseparability invincibility separability wittingly audibility flaccidity incivility lyrically miscibility piercingly serendipity atypically ineffability invariability livability navigability tenability torpidity gimmickry immovability likability likeability notability uncivilly winningly idyllically inaudibility searingly venerability principally credibility impossibility accessibility admittedly anonymity eligibility inevitability equanimity excitability usability culpability immutability mutability readability rhythmically cyclically derisively mystically perfectibility unsuitability whimsically amenability cryptically flammability fusibility irascibility juridically pliability rancidity sneeringly terrifically curability frigidly impassibility impregnability incredibility inflammability thrillingly bewitchingly forbiddingly inexorability memorability risibility untypically befittingly inimically liveability potability skittishly useability quotability stiltedly cliquishly desirability permeability vulnerability exquisitely plausibility respectability unwittingly advisability artistically comparability intelligibility judiciously tranquility unwillingly convertibility portability prodigiously unavailability capriciously invulnerability maneuverability marketability serviceability changeability elliptically impermeability implausibility intractability logistically officiously tractability vindictively habitability inadvisability ineligibility manageability provability attainability egotistically pacifically permissively egoistically marriageability apolitically specifically instinctively profitability analytically convincingly sustainability maliciously predictability dependability digestibility interoperability stylistically unreliability indispensability submissively suggestibility unthinkingly dismissively heuristically holistically impenetrability injudiciously prolifically simplistically undesirability inalienability inconceivability incorrigibility manoeuvrability penetrability unstintingly horrifically impressionability nonavailability reputability unblinkingly agonisingly aphoristically avariciously demonstrability legalistically surrealistically domineeringly insistingly lubriciously characteristically distinctively incompatibility realistically linguistically unpredictability descriptively interchangeability unflinchingly unremittingly indestructibility altruistically fatalistically idealistically restrictively destructibility incontestability moralistically patronymically euphemistically uncharacteristically unrealistically opportunistically psychoanalytically unconvincingly antagonistically patronisingly prescriptively capitalistically reproducibility anachronistically biodegradability materialistically imperialistically