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