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