Here's what rhymes with unholdable.
double bubble publ trouble rubble stubble redouble playable addable friable dirigible filtrable vocable flyable beatable tamable conformable damnable uncharitable unbridgeable attachable unplayable acquirable vincible exploitable translatable nonviable unarguable unnameable ignitable unlikable compoundable transmutable dividable unloveable imperishable imperturbable indissoluble containable untranslatable indemonstrable Words that almost rhyme with unholdable
puddle tuple couple subtle shuttle muddle rebuttal suppl supple huddle cuddle cudgel rappel fuddle scuttle decouple befuddle uncouple oversubtle thermocouple tunnel puzzle bustle tumble buckle chuckle jumble tional juggle tussle bumble pummel duckbill tamale tousle 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 reshuffle snaffle snuggle trundle lungful rumple snuffle unbuckle mugful pinocle frontal triumphal colourful crustal nuptial subcortical bestowal lustful peduncle suboptimal carbuncle trustful crumple kerfuffle cupsful conformal honeysuckle prenuptial granduncle nonvocal heptagonal prefrontal antifungal mistrustful duodecimal disgruntle distrustful