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