Changeable rhymes with:
exchangeable, interchangeable, exchangeable, interchangeable, exchangeable, intangible, interchangeable, tangible, acknowledgeable, agregable, chargeable, corrigible, eligible, exchangeable, illegible, incorrigible, ineligible, intangible, intelligible, interchangeable, knowledgeable, legible, manageable, negligible, rechargeable, salvageable, tangible, unintelligible, unmanageable
Changeable sounds like:
communicable, conceivable, conceivably