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