Here's what rhymes with custumable.
consumable assumable presumable Words that almost rhyme with custumable
dutiable doable suitable juvenile movable usable moveable fusible luminal provable beautiful usual unsuitable crucible immovable reducible deducible inducible mutable reusable unusable unmovable unmoveable commutable construable mutual unusual immutable irreducible renewable attitudinal cuticle removable delusional irrefutable disputable producible improvable refutable disprovable constitutional executable inscrutable excusable latitudinal irremovable manoeuvrable institutional longitudinal indisputable reproducible unconstitutional inexcusable nonrenewable distributional