Here's what rhymes with impostible.
double bubble stubble publ trouble rubble playable addable friable dirigible redouble vocable flyable beatable dividable tamable damnable imperturbable uncharitable unbridgeable nonviable attachable filtrable unplayable acquirable vincible imperishable indissoluble exploitable ignitable compoundable conformable translatable indemonstrable unnameable containable unlikable unloveable untranslatable unarguable transmutable Words that almost rhyme with impostible
puddle tuple couple subtle shuttle muddle suppl supple huddle scuttle cuddle cudgel rappel fuddle rebuttal decouple befuddle oversubtle uncouple thermocouple tunnel puzzle bustle tumble buckle chuckle jumble stumble tional juggle tussle bumble pummel duckbill tamale tousle tubful struggle muscle humble bundle jungle funnel muzzle shovel ductile rumble rustle shuffle bestowal ductal hovel hustle knuckle muffle mussel ruffle scuffle smuggle subtile fumble mumble phrasal pustule suckle caecal runnel snaffle snuggle truffle bungle guzzle nuzzle truckle gunnel snuffle gumball jugful tumbrel frontal fungal autumnal crumble grumble trundle lungful rumple unbuckle mugful pinocle triumphal colourful crustal nuptial lustful peduncle suboptimal trustful crumple reshuffle nonvocal kerfuffle cupsful prefrontal subcortical antifungal conformal distrustful honeysuckle carbuncle prenuptial duodecimal heptagonal disgruntle mistrustful granduncle