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