10
aware(adjective, understanding, keen, sensible, perceptive)
10
knowing(adjective, keen, sharp, ability, smart)
10
knowledgeable(adjective, understanding, keen, sharp, bright)
10
prudent(adjective, sharp, intelligent, wise, clever)
10
sage(adjective, understanding, smooth, keen, sharp)
9
clear-sighted(adjective, sharp, sensible, sensitive, wise)
9
quick-witted(adjective, sharp, smart, intelligent, clever)
9
sensible(adjective, sound, smooth, sharp, intelligent)
8
bright(adjective, keen, sharp, smart, active)
8
incisive(adjective, understanding, keen, sharp, smart)
8
politic(adjective, sensible, intelligent, wise, shrewd)
8
savvy(adjective, sharp, ability, smart, informal)
7
discreet(adjective, understanding, keen, sharp, smart)
7
insightful(adjective, understanding, smooth, keen, sharp)
7
sapient(adjective, smooth, reasonable, sharp, smart)
7
sharp-witted(adjective, sharp, smart, bright, wise)
6
brainy(adjective, keen, sharp, smart, intelligent)
6
circumspect(adjective, sound, reasonable, smart, clever)
6
collected(sound, reasonable, sensible, intellectual, mental)
6
observant(adjective, person, understanding, keen, sharp)
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APASmart Define. (2016). perspicacious thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/perspicacious/thesaurus/synonyms
ChicagoSmart Define. 2016. "perspicacious thesaurus" https://smartdefine.org/perspicacious/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, perspicacious thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/perspicacious/thesaurus/synonyms>.
MLASmart Define. "perspicacious thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/perspicacious/thesaurus/synonyms>