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