Here's what rhymes with pseudoternary.
marry merry ternary nary very ordinary vary fairy bury dairy ferry wary cherry hairy berry sherry tarry canary parry unwary harry tare barre terry faerie wherry pulmonary coronary dietary urinary prairie honorary papillary scary cautionary remarry buffoonery legionary pessary apiary topiary nondairy temporary customary missionary capillary dictionary imaginary stationary adversary legendary momentary pituitary visionary budgetary corollary dysentery mercenary sedentary seminary veterinary emissary itinerary obituary stationery centenary luminary probationary aviary bacillary actuary equerry humeri lapidary bilberry elderberry chokecherry plagiary necessary military literary secondary arbitrary monetary commentary hereditary solitary cemetery disciplinary judiciary sanitary tributary unitary ancillary estuary planetary apothecary commissary functionary funerary mortuary sanguinary statuary dignitary epistolary supernumerary tutelary beriberi breviary diversionary cassowary dromedary geostationary tercentenary sectary extraordinary secretary preliminary unnecessary evolutionary monastery sanctuary subsidiary vocabulary fragmentary maxillary pecuniary proprietary reactionary salutary culinary fiduciary savagery deflationary genitourinary unsanitary huckleberry recessionary voluptuary bicentenary nonliterary uncustomary contemporary revolutionary beneficiary involuntary discretionary inflationary exclusionary expansionary expeditionary paramilitary insanitary nonmilitary concessionary eleemosynary cardiopulmonary confectionery interplanetary constabulary elocutionary nonhereditary interdisciplinary undersecretary multidisciplinary counterrevolutionary Words that almost rhyme with pseudoternary
belly allele jelly smelly deli telly underbelly vermicelli many messy heavy ready fairly rarely barely semi petty levy penny antennae heady levee medley unfairly jetty teddy bevy faery jenny kepi leggy recce sedgy veggie healthy steady wealthy deadly lengthy gentry unhealthy fleshy carefree sentry sexy sketchy spaghetti sweaty unsteady vestry belfry deathly gayety hefty machete confetti pebbly tempi testy breathy dressy pesky thready lefty wetly already directly especially twenty assembly scarcely elementary gently plenty epilepsy freshly immensely densely frenzy squarely deftly coquetry fleshly stealthy fidgety tensely trendy aplenty baronetcy libretti maidenly marquetry adeptly effendi ineptly friendly correctly intensely intently unfriendly apoplexy halfpenny sullenly hostelry deviancy preciously woodenly indirectly complementary incorrectly excellency complexly sacredly catalepsy reassembly penitently expressly confusedly grotesquely narcolepsy cognoscenti ambivalently circumspectly equivalently