Here's what rhymes with extentionality.
informality banality venality personality rationality centrality immorality intentionality emotionality seasonality immortality functionality originality plurality criminality principality temporality conventionality marginality speciality bestiality illegality mutuality eventuality punctuality technicality constitutionality instrumentality materiality proportionality sentimentality superficiality collegiality immateriality unconventionality individuality impartiality artificiality heterosexuality unconstitutionality Words that almost rhyme with extentionality
tenacity veracity humanity tacitly massively panicky thematically validly pugnacity mannishly radically sanctity passively lavishly savagely laughingly mendacity invalidly passingly snappishly waggishly abashedly raffishly caddishly automatically dramatically emphatically mechanically dynamically graphically candidly classically schematically sporadically tragically casuistry diplomatically dogmatically fantastically handedly pertinacity placidly statically erratically slavishly unabashedly enigmatically impassively lastingly emblematically idiomatically pneumatically inactively irascibly unflaggingly aromatically monastically rheumatically systematically drastically democratically organically sarcastically attractively ecstatically everlastingly interactively nostalgically climatically demographically symptomatically axiomatically chromatically enchantingly scholastically telepathically phlegmatically slantingly bombastically evenhandedly highhandedly operatically prancingly photographically proactively ethnographically problematically aerodynamically autocratically biographically offhandedly thermostatically outlandishly telegraphically exactingly inorganically lithographically unattractively acrobatically underhandedly gymnastically enthusiastically distractedly outstandingly topographically understandingly bureaucratically expansively melodramatically orthographically typographically aristocratically pornographically retroactively radioactively idiosyncratically autobiographically bibliographically ecclesiastically