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