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

75 entries under cool topic. ×

3
knowledgeable(adjective, understanding, keen, sharp)
3
quick-witted(adjective, strong, sharp, smart)
3
sensible(adjective, understanding, reasonable, restrained)
3
sentient(adjective, understanding, sensible, significant)
3
wise(adjective, understanding, reasonable, keen)
2
brainy(adjective, understanding, keen, sharp)
2
conversant(adjective, understanding, sensible, sympathetic)
2
percipient(adjective, understanding, keen, sharp)
2
sagacious(adjective, understanding, reasonable, keen)
2
sage(adjective, understanding, keen, sharp)
2
smart(adjective, understanding, sharp, bright)
2
tuned in(expression, adjective, understanding, keen)
2
with it(expression, adjective, understanding, sharp)
1
au courant(expression, adjective, understanding, sensible)
1
brilliant(adjective, smart, bright, fast)
1
canny(adjective, kind, sharp, friendly)
1
competent(adjective, significant, intelligent, brilliant)
1
experienced(adjective, significant, intelligent, brilliant)
1
expert(adjective, significant, intelligent, brilliant)
1
familiar(adjective, sensible, knowledgeable, aware)
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ChicagoSmart Define. 2016. "observant thesaurus" https://smartdefine.org/observant/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, observant thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/observant/thesaurus/synonyms>.
MLASmart Define. "observant thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/observant/thesaurus/synonyms>