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