Here's what rhymes with gainable.
attainable trainable obtainable sustainable unattainable ascertainable explainable maintainable unobtainable unsustainable Words that almost rhyme with gainable
claimable irreclaimable reclaimable capable payable changeable saleable salable bailable gradable available occasional incapable traceable breakable assailable erasable vocational insatiable debatable unchangeable exchangeable locational unshakable repayable unshakeable degradable unsaleable unsalable conveyable resalable educational operational relational inescapable rotational unavailable ideational unassailable inflatable replaceable unbreakable avocational untraceable aberrational mistakable persuadable embraceable occupational recreational interchangeable sensational situational vibrational foundational generational gestational navigational correlational irreplaceable subnational variational mutational microwavable probational nonbreakable gravitational unmistakable conversational informational motivational observational conformational inspirational associational biodegradable coeducational invitational nonexchangeable nonvocational organizational computational organisational congregational translational noneducational nonoperational denominational confrontational nonoccupational noninterchangeable intergenerational transformational improvisational representational nondenominational interdenominational nonrepresentational