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