Here's what rhymes with designable.
Words that almost rhyme with designable
eligible educable penetrable pensionable equitable estimable heritable predicable intelligible negligible questionable objectionable creditable demonstrable impenetrable reputable revocable inevitable irrevocable impressionable inequitable pestilential inheritable exceptionable unmentionable unintelligible unquestionable disreputable discreditable unobjectionable unexceptionable