Punishable rhymes with:
distinguishable, indistinguishable, perishable, appreciable, depreciable, distinguishable, indistinguishable, insatiable, negotiable, nonnegotiable, perishable, sociable, washable
distinguishable, indistinguishable, perishable, appreciable, depreciable, distinguishable, indistinguishable, insatiable, negotiable, nonnegotiable, perishable, sociable, washable