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