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