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