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