103 entries under intelligent topic. ×

9
sharp-eyed(adjective, attentive, watchful, vigilant)
9
sprightly(adjective, good, clear, strong, pleasant)
8
discerning(adjective, understanding, keen, sharp, smart)
7
sharp-witted(adjective, keen, ability, smart)
6
brilliant(adjective, good, sharp, smart, bright)
6
knowing(adjective, understanding, keen, sharp, smart)
5
apt(adjective, smart, bright, precise)
5
brainy(adjective, understanding, keen, sharp, smart)
5
fast(adjective, activity, keen, bright, energetic)
5
knowledgeable(adjective, understanding, keen, sharp, smart)
5
sensible(adjective, understanding, open, keen, smart)
5
sensitive(adjective, understanding, open, keen, sharp)
4
advertent(attentive, watchful, sharp-eyed)
4
canny(adjective, smart, bright, cautious)
4
considering(adjective, attentive, watchful, sharp-eyed)
4
eagle-eyed(adjective, attentive, watchful, sharp-eyed)
3
able(adjective, smart, bright, competent)
3
adroit(adjective, good, keen, sharp, smart)
3
ingenious(adjective, good, sharp, smart, bright)
3
nimble-witted(adjective, smart, clever)
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APASmart Define. (2016). alert thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/alert/thesaurus/synonyms
ChicagoSmart Define. 2016. "alert thesaurus" https://smartdefine.org/alert/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, alert thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/alert/thesaurus/synonyms>.
MLASmart Define. "alert thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/alert/thesaurus/synonyms>