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

90 entries under sharp topic. ×

7
penetrating(adjective, understanding, strong, smart)
6
acute(adjective, understanding, strong, keen)
6
sensitive(adjective, understanding, open, kind, keen)
5
bright(adjective, open, cool, friendly)
5
discreet(adjective, understanding, kind, keen)
5
perspicacious(adjective, person, understanding, keen)
5
shrewd(adjective, understanding, smart, significant)
5
understanding(noun, adjective, smart, alert)
4
judicious(adjective, understanding, cool, reasonable, keen)
4
ready(adjective, open, friendly, bright)
4
wide-awake(adjective, keen, bright, lively)
3
active(bright, lively, alert, aware)
3
all ears(expression, adjective, bright, lively)
3
cagey(adjective, bright, lively, careful)
3
clever(adjective, cool, bright, lively)
3
insightful(adjective, understanding, cool, keen)
3
knowing(adjective, understanding, cool, keen)
3
knowledgeable(adjective, understanding, cool, keen)
3
on the job(expression, adjective, idiom, keen)
3
quick-witted(adjective, strong, cool, smart)
For more, visit Observant on Power Thesaurus
10 years ago|12k views|share |citing 
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>