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