683 entries under noun topic. ×

3
incitement(drive, cause, desire, interest)
3
intellectuality(understanding, power, spirit, ability)
3
intent(end, feeling, cause, plan)
3
marbles(understanding, power, spirit, mind)
3
nous(knowledge, intelligence, wisdom, intellect)
3
origin(regulation, cause, start, base)
3
perception(form, end, feeling, understanding)
3
perspicacity(understanding, knowledge, mind, grasp)
3
pretense
3
psyche(feeling, understanding, power, energy)
3
rationalism(knowledge, attitude, sense, intelligence)
3
reason why(expression, idiom, cause, spur)
3
sake(objective, justification)
3
sapience(understanding, knowledge, mind, sense)
3
sensibleness(knowledge, sense, intelligence, thought)
3
sound mind(expression, sense, intelligence, thought)
3
target(cause, plan, desire, object)
2
ulterior motive(expression, cause, plan, desire)
2
ability(feeling, understanding, power, turn)
2
analysis(argument, thinking, calculation, logic)
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APASmart Define. (2016). reason thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/reason/thesaurus/synonyms
ChicagoSmart Define. 2016. "reason thesaurus" https://smartdefine.org/reason/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, reason thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/reason/thesaurus/synonyms>.
MLASmart Define. "reason thesaurus" 25 February 2016. Web. 27 September 2026. <https://smartdefine.org/reason/thesaurus/synonyms>