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