99 entries under alert topic. ×

12
alive(adjective, cool, keen, smart, bright)
12
spirited(adjective, sharp, bright, energetic, lively)
12
sprightly(adjective, pleasant, keen, sharp, smart)
12
vigorous(adjective, pleasant, keen, sharp, smart)
11
dexterous(adjective, light, smooth, keen, smart)
11
quick-witted(adjective, cool, sharp, ability, smart)
10
sensitive(adjective, characteristic, understanding, keen, sharp)
10
wise(adjective, understanding, cool, keen, sharp)
9
brainy(adjective, understanding, cool, smooth, keen)
9
penetrating(adjective, understanding, sharp, smart, bright)
8
vivacious(adjective, sharp, bright, energetic, lively)
7
observant(adjective, understanding, cool, keen, sharp)
7
zippy(adjective, sharp, energetic, lively, active)
6
awake(adjective, understanding, cool, keen, sharp)
6
on the ball(expression, adjective, idiom, smooth, sharp)
6
wide-awake(adjective, sharp, bright, lively)
5
responsive(adjective, understanding, keen, sharp, smart)
5
savvy(adjective, understanding, smooth, keen, sharp)
4
attentive(adjective, sharp, bright, lively)
4
eager(energetic, ready, active, intelligent)
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APASmart Define. (2016). quick thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/quick/thesaurus/synonyms
ChicagoSmart Define. 2016. "quick thesaurus" https://smartdefine.org/quick/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, quick thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/quick/thesaurus/synonyms>.
MLASmart Define. "quick thesaurus" 1 April 2016. Web. 20 September 2026. <https://smartdefine.org/quick/thesaurus/synonyms>