4
descent(back, slow, backward, reverse direction)
4
plant(noun, thing)
4
quadruped
4
reptile
4
whole(noun, entity, organization, regulation, understanding)
3
annulment(back, slow, backward, reverse direction)
3
atavism(back, slow, backward, reverse direction)
3
atavist(back, slow, backward, reverse direction)
3
backset(back, slow, backward, reverse direction)
3
backsliding(back, slow, backward, reverse direction)
3
backward deviation(back, slow, backward, reverse direction)
3
backward motion(back, slow, backward, reverse direction)
3
backward step(back, slow, backward, reverse direction)
3
backwardation(back, slow, backward, reverse direction)
3
bloomer(back, slow, backward, reverse direction)
3
cancellation(back, slow, backward, reverse direction)
3
check(back, slow, backward, reverse direction)
3
checkmate(back, slow, backward, reverse direction)
3
come back(back, slow, backward, reverse direction)
3
critter(noun, creature, being)
11 years ago|5.8k views|share |citing 
APASmart Define. (2015). organism thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/organism/thesaurus/synonyms
ChicagoSmart Define. 2015. "organism thesaurus" https://smartdefine.org/organism/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, organism thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/organism/thesaurus/synonyms>.
MLASmart Define. "organism thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/organism/thesaurus/synonyms>