80 entries under reasonable topic. ×

28
reasoning(noun, verb, adjective, understanding, philosophy)
25
intelligent(adjective, sound, smart, bright)
20
pondering(noun, verb, adjective, keen)
14
thoughtful(adjective, sound, sensible, heavy)
14
meditative(adjective, keen, thought, rational)
14
rational(adjective, sound, keen, smart)
12
pensive(adjective, keen, thought, rational)
12
reasonable(adjective, sound, keen, smart)
10
sensible(adjective, sound, rational, wise)
10
reflective(adjective, sound, sensible, thought)
9
logical(adjective, sound, keen, sensible)
9
ruminative(adjective, rational, intelligent, thoughtful)
8
contemplative(adjective, keen, thought, rational)
7
cogitative(adjective, keen, rational, intelligent)
6
deliberative(adjective, keen, thought, deep)
6
intellectual(adjective, sound, keen, smart)
6
reflecting(noun, verb, adjective, keen)
5
cerebral(adjective, sound, keen, sensible)
5
wise(adjective, sound, keen, smart)
4
calculating(verb, adjective, keen, smart)
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APASmart Define. (2016). thinking thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/thinking/thesaurus/synonyms
ChicagoSmart Define. 2016. "thinking thesaurus" https://smartdefine.org/thinking/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, thinking thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/thinking/thesaurus/synonyms>.
MLASmart Define. "thinking thesaurus" 11 February 2016. Web. 22 September 2026. <https://smartdefine.org/thinking/thesaurus/synonyms>