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