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