8
rationalize(verb, activity, study, consider, resolve)
8
saneness(noun, understanding, mind, sense, intelligence)
7
aim(noun, form, end, feeling, understanding)
7
cerebrate(verb, study, consider, resolve, examine)
7
common sense(noun, expression, idiom, feeling, understanding)
7
consider(verb, study, determine, oppose, turn)
7
contend(verb, consider, present, maintain, oppose)
7
discernment(noun, feeling, understanding, knowledge, mind)
7
dispute(noun, verb, consider, oppose, speech)
7
driving force(expression, drive, inspiration, incentive)
7
inducement(noun, drive, cause, desire, interest)
7
mentality(noun, feeling, understanding, power, spirit)
7
plea(noun, trick, case, claim, approval)
7
ponder(verb, study, consider, favor, see)
7
pretext(noun, cover, cause, trick, base)
7
study(verb, philosophy, consider, favor, see)
7
thought(noun, form, end, feeling, understanding)
7
vindication(noun, cause, trick, approval, argument)
7
warrant(noun, verb, support, action, information)
7
wherefore(noun, information, cause, start, base)
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APASmart Define. (2016). reason thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/reason/thesaurus/synonyms
ChicagoSmart Define. 2016. "reason thesaurus" https://smartdefine.org/reason/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, reason thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/reason/thesaurus/synonyms>.
MLASmart Define. "reason thesaurus" 25 February 2016. Web. 21 September 2026. <https://smartdefine.org/reason/thesaurus/synonyms>