Synonyms|477Antonyms|26|Broader|4Narrower|0Related|17

163 entries under adjective topic. ×

3
on guard(expression, keen, sharp, bright)
3
on the lookout(expression, sharp, lively, alert)
3
prompt(smart, bright, intelligent, responsive)
3
quick-witted(sharp, smart, bright, familiar)
3
savvy(smooth, keen, sharp, smart)
3
wakeful(keen, sharp, bright, alert)
3
wary(keen, sharp, bright, lively)
2
accomplished(good, smart, intelligent, practical)
2
acute(smooth, keen, sharp, smart)
2
apt(good, smooth, sharp, smart)
2
brainy(smooth, keen, sharp, smart)
2
brilliant(smart, bright, familiar, intelligent)
2
cagey(smooth, keen, sharp, smart)
2
circumspect(keen, sharp, bright, lively)
2
crackerjack(smooth, smart, bright, clean)
2
gifted(smart, bright, intelligent, skilled)
2
good(sharp, smart, bright, useful)
2
knowing(smooth, keen, sharp, smart)
2
lively(sharp, bright, alert, aware)
2
observing(careful, knowledgeable, cautious, aware)
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APASmart Define. (2015). on the ball thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/on_the_ball/thesaurus/synonyms
ChicagoSmart Define. 2015. "on the ball thesaurus" https://smartdefine.org/on_the_ball/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, on the ball thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/on_the_ball/thesaurus/synonyms>.
MLASmart Define. "on the ball thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/on_the_ball/thesaurus/synonyms>