56 entries under reasonable topic. ×

4
reflective(adjective, sound, sharp, smart)
4
subtle(adjective, sharp, sensible, shrewd)
4
thoughtful(adjective, sound, sharp, smart)
3
reasoned(adjective, sound, sensible, rational)
3
attentive(adjective, sharp, bright, sensible)
3
careful(adjective, sound, sharp, smart)
3
sober(adjective, sound, sensible, rational)
3
vigilant(adjective, cool, sharp, bright)
3
watchful(adjective, cool, sharp, smart)
3
witting(adjective, cool, knowledge, experience)
2
circumspect(adjective, sharp, sensible, lively)
2
deductive(adjective, sound, sensible, reasoning)
2
conversant(adjective, cool, sympathetic, significant)
2
cool(adjective, sound, sensible, significant)
2
far-sighted(adjective, sound, smooth, sharp)
2
lucid(adjective, clear, sound, sensible)
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APASmart Define. (2016). intelligent thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/intelligent/thesaurus/synonyms
ChicagoSmart Define. 2016. "intelligent thesaurus" https://smartdefine.org/intelligent/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, intelligent thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/intelligent/thesaurus/synonyms>.
MLASmart Define. "intelligent thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/intelligent/thesaurus/synonyms>