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