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