683 entries under noun topic. ×
| approval(argument, explanation, excuse, reasoning) | |
| aspiration(plan, desire, object, determination) | |
| assurance(explanation, excuse) | |
| astuteness(understanding, knowledge, mind, sense) | |
| base(support, regulation, action, cause) | |
| bedrock(support, action, cause, start) | |
| brainpower(understanding, power, spirit, mind) | |
| catalyst(drive, desire, interest, enthusiasm) | |
| cerebration(understanding, ability, idea, intelligence) | |
| cogitation(philosophy, idea, argument, analysis) | |
| conjecture(verb, consider, determine, examine) | |
| cover(verb, study, consider, cause) | |
| crusade | |
| decipherment(mind, grasp, sense, intelligence) | |
| discrimination(feeling, understanding, knowledge, mind) | |
| earth | |
| essence(form, support, action, end) | |
| exemplification(situation, occasion, occurrence, example) | |
| faculties(intellect, wits, nous) | |
| fancy(verb, form, end, feeling) |
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| APA | Smart Define. (2016). reason thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/reason/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "reason thesaurus" https://smartdefine.org/reason/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, reason thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/reason/thesaurus/synonyms>. |
| MLA | Smart Define. "reason thesaurus" 25 February 2016. Web. 28 September 2026. <https://smartdefine.org/reason/thesaurus/synonyms> |