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