Synonyms|424Antonyms|87|Broader|7Narrower|0Related|1.1k

68 entries under observant topic. ×

7
discreet(adjective, understanding, keen, sharp, smart)
7
insightful(adjective, understanding, smooth, keen, sharp)
7
sharp-witted(adjective, sharp, smart, bright, wise)
6
sensitive(adjective, understanding, keen, sharp, sensible)
4
cognizant(perceptive, insightful, intelligence wisdom)
4
heady(adjective, sharp, smart, intelligent, wise)
3
penetrative(understanding, keen, sensitive, perceptive, penetrating)
2
apperceptive(perceptive, insightful)
2
attentive(adjective, perceptive, insightful)
2
awake(understanding, keen, sensitive, perceptive)
2
conscious(understanding, keen, sensitive, perceptive, intellectual)
2
informed(adjective, sensible, intelligent, wise, shrewd)
2
mindful(perceptive, insightful)
2
watchful(adjective, smart, shrewd, perceptive, clever)
1
alive to(verb, expression, phrasal verb, perceptive)
1
gnostic(adjective, understanding, smooth, keen, sharp)
1
insighted(adjective, understanding, keen, sharp, sensitive)
1
responsive(understanding, keen, sensitive, perceptive, penetrating)
1
sophic(adjective, understanding, smooth, keen, sharp)
1
tuned in(expression, adjective, understanding, cool, smooth)
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ChicagoSmart Define. 2016. "perspicacious thesaurus" https://smartdefine.org/perspicacious/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, perspicacious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/perspicacious/thesaurus/synonyms>.
MLASmart Define. "perspicacious thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/perspicacious/thesaurus/synonyms>