Here's what rhymes with decisiontheory.
theory weary cheery wiry dearie miry leery teary beery deary smeary dreary bleary Words that almost rhyme with decisiontheory
silly hilly villi filly really chilly lily chile chili willy billy shrilly chilli frilly dilly gillie slily worthily shabbily unworthily pithily lengthily meagrely sombrely healthily sketchily patchily stealthily unhealthily involuntarily tranquilly rockabilly waterlily city hippie fishy sissy finny hippy shitty fizzy shimmy shinny nearly fifty merely busy pity severely sincerely yearly dearly fiercely filthy guinea witty dizzy mini sickly sticky thickly thinly fitly giddy silky skinny dinghy mitre pithy silty ditty filmy kitty shifty smithy frizzy gimme jiffy kiddie ninny picky piggy tinny whinny bitchy bitty jimmy middy biddy biggie clearly simply committee guilty pretty sixty kidney chimney richly risky singly whiskey dimly misty privy tricky whisky windy dingy flimsy gypsy kingly milky sophistry stiffly thrifty wintry gritty stingy stringy tipsy bilge flinty kinky perigee pigmy pygmy skimpy springy synonymy whimsy wispy austerely frisky menisci nifty pinky quickie solidi weirdly clingy dinky fifthly insincerely jitney pinkie pixie prissy slinky squishy stinky wimpy quickly swiftly grimly prickly feverishly glibly grisly grizzly reentry colicky intercity limply nimbly spindly crispy deviltry pigsty primly drizzly fluidly glitzy horridly pimply trimly twisty strictly briskly princely subcommittee succinctly fixedly ignominy sacristy bristly crisply crudity elastically lucidly cavalierly unblushingly crinkly crushingly luridly rabidly swimmingly languidly indecisively transitively distinctly indistinctly propinquity