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