455 entries under noun topic. ×

4
explanation(reason, defense, basis, motivation)
4
idea(philosophy, knowledge, reason, attitude)
4
imagination(feeling, understanding, power, spirit)
4
motivation(basis, thinking, justification, grounds)
4
speculation(understanding, mind, sense, intelligence)
3
absorption
3
appraisal
3
brain-power
3
brains(feeling, understanding, power, philosophy)
3
cognition(understanding, philosophy, idea, attention)
3
conception(power, knowledge, spirit, mind)
3
engrossment
3
hypothesis(analysis, basis, motivation, justification)
3
lucubration
3
preoccupation
3
psyche(power, spirit, mind, reason)
3
psychology(understanding, philosophy, character, position)
3
rationalization(understanding, philosophy, mind, reason)
3
reasons(basis, motivation, justification, grounds)
3
sense(understanding, philosophy, character, position)
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APASmart Define. (2015). reasoning thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/reasoning/thesaurus/synonyms
ChicagoSmart Define. 2015. "reasoning thesaurus" https://smartdefine.org/reasoning/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, reasoning thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/reasoning/thesaurus/synonyms>.
MLASmart Define. "reasoning thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/reasoning/thesaurus/synonyms>