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