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