Here's what rhymes with tubbable.
clubbable Words that almost rhyme with tubbable
touchable subtotal untouchable lovable gullible loveable adjustable culpable deductible junctional unlovable ungentle functional combustible refundable inculpable uncrushable conductible ineluctable instructional dysfunctional incombustible constructional nonfunctional noncombustible nonrefundable