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