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