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