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