22 entries under quick-thinking topic. ×

2
canny(adjective, keen, sharp, smart, bright)
1
apt(smart, bright, intelligent, clever, slick)
1
astute(adjective, keen, sharp, smart, bright)
1
bright(adjective, keen, sharp, smart, active)
1
capable(bright, expert, skilled, skillful, adroit)
1
competent(bright, sharp-witted)
1
discerning(adjective, keen, sharp, smart, bright)
1
effective(bright, sharp-witted)
1
effectual(bright, sharp-witted)
1
perspicacious(adjective, keen, sharp, smart, bright)
1
ready(smart, bright, intelligent, clever, slick)
1
receptive(bright, sharp-witted)
1
shrewd(adjective, keen, sharp, smart, bright)
1
whiz(adjective, smooth, sharp, smart, bright)
1
wired(smart, bright, intelligent, clever, slick)
1
wise(adjective, keen, sharp, smart, bright)
0
quick(adjective, smooth, sharp, smart, bright)
0
able(bright, sharp-witted)
0
acute(smart, bright, intelligent, clever, sharp-witted)
0
quick off the mark(expression, idiom, bright, sharp-witted)
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APASmart Define. (2011). sharp as a tack thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/sharp_as_a_tack/thesaurus/synonyms
ChicagoSmart Define. 2011. "sharp as a tack thesaurus" https://smartdefine.org/sharp_as_a_tack/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2011, sharp as a tack thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/sharp_as_a_tack/thesaurus/synonyms>.
MLASmart Define. "sharp as a tack thesaurus" 23 May 2011. Web. 21 September 2026. <https://smartdefine.org/sharp_as_a_tack/thesaurus/synonyms>