Here's what rhymes with preposable.
disposable Words that almost rhyme with preposable
sociable negotiable unsociable renegotiable nonnegotiable potable notable knowable erodible revokable approachable quotable reproachable emotional unknowable irreproachable notional inapproachable devotional promotional controllable unapproachable consolable inconsolable uncontrollable unemotional overemotional