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