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