Synonyms|648Antonyms|154|Broader|16Narrower|18Related|740

90 entries under sharp topic. ×

3
wise(adjective, understanding, cool, reasonable, keen)
2
brainy(adjective, understanding, cool, keen)
2
discriminating(adjective, alert, careful, cautious)
2
hip(bright, lively, alert, careful)
2
intense(adjective, strong, powerful, deep)
2
on the qui vive(expression, adjective, idiom, keen)
2
percipient(adjective, understanding, cool, keen)
2
responsive(adjective, understanding, open, kind, keen)
2
sagacious(adjective, understanding, cool, reasonable, keen)
2
sage(adjective, understanding, cool, keen)
2
smart(adjective, understanding, cool, bright)
2
tuned in(expression, adjective, understanding, cool, keen)
2
with it(expression, adjective, understanding, cool)
1
canny(adjective, cool, kind, friendly)
1
caustic(adjective, strong, intense, powerful)
1
cute(understanding, smart, shrewd, perceptive)
1
ear to the ground(expression, idiom, understanding, keen)
1
fast on the draw(expression, idiom, bright, lively)
1
good hands(expression, bright, lively, wise)
1
heads up(expression, bright, lively, alert)
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APASmart Define. (2016). observant thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/observant/thesaurus/synonyms
ChicagoSmart Define. 2016. "observant thesaurus" https://smartdefine.org/observant/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, observant thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/observant/thesaurus/synonyms>.
MLASmart Define. "observant thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/observant/thesaurus/synonyms>