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