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