4
cogent(adjective, clear, sound, reasonable, sensible)
4
conscious(adjective, understanding, cool, sound, reasonable)
4
heavy(adjective, deep, thoughtful, weighty, reflective)
4
higher-order(adjective, characteristic, intelligence, smartness)
4
instructed(adjective, smart, characteristic, bright, familiar)
4
intuitive(adjective, characteristic, intelligence, smartness)
4
plausible(adjective, clear, sound, reasonable, sensible)
4
practical(adjective, sound, reasonable, sensible, familiar)
4
quick on the uptake(expression, characteristic, intelligence, smartness)
4
reflective(adjective, sound, reasonable, sharp, smart)
4
skillful(adjective, good, cool, knowledge, keen)
4
sparkling(adjective, keen, bright, funny, amusing)
4
subtle(adjective, reasonable, sharp, sensible, shrewd)
4
thoughtful(adjective, sound, reasonable, sharp, smart)
4
worldly(adjective, cool, significant, familiar, brilliant)
3
reasoned(adjective, sound, reasonable, sensible, rational)
3
tricky(adjective, sharp, smart, cunning, deceitful)
3
active(adjective, keen, sharp, smart, bright)
3
attentive(adjective, reasonable, sharp, bright, sensible)
3
au fait(expression, adjective, keen, smart, familiar)
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APASmart Define. (2016). intelligent thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/intelligent/thesaurus/synonyms
ChicagoSmart Define. 2016. "intelligent thesaurus" https://smartdefine.org/intelligent/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, intelligent thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/intelligent/thesaurus/synonyms>.
MLASmart Define. "intelligent thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/intelligent/thesaurus/synonyms>