quick

[kwik] / kwɪk /

ADJECTIVE

fast, speedy

Synonyms

STRONGEST

abrupt active agile brief brisk cursory energetic expeditious hasty hurried immediate instantaneous keen nimble rapid sudden swift

STRONG

alert express fleet flying going prompt

WEAK

ASAP a move on accelerated animated breakneck curt double-time expeditive harefooted headlong impatient impetuous lively mercurial move it on the double perfunctory posthaste pronto snappy spirited split-second sprightly spry the lead out winged

Antonyms

STRONGEST

clumsy delayed idle inactive later lazy leisurely slow sluggish unhurried

WEAK

ignorant stupid uneducated

ADJECTIVE

smart

Synonyms

STRONGEST

able active deft effective keen ready sharp vigorous wise

STRONG

acute adept knowing prompt savvy slick whiz

WEAK

adroit all there apt astute bright canny capable clever competent dexterous discerning effectual intelligent nimble-witted on the ball perceptive perspicacious quick on the draw quick on the trigger quick on the uptake quick-witted receptive sharp as a tack shrewd skillful smart as a whip wired

Antonyms

STRONGEST

blunt dull idle ignorant impotent inactive ineffective inept lazy slow stupid unintelligent useless weak

STRONG

clumsy

WEAK

sluggish uneducated

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But Iran was quick to respond—with China’s help.

From The Wall Street Journal • Apr. 7, 2026

When stocks see strong gains, individual investors see this as an opportunity to sell and turn a quick profit.

From MarketWatch • Apr. 6, 2026

Maybe “Hag” was knocking on my door, trying to manifest the fate I’d been so quick to refuse.

From Salon • Apr. 5, 2026

The social-media post doesn’t bode well for a quick end to the conflict.

From Barron's • Apr. 4, 2026

Charlie recovered pretty quick, because he said, “Them biscuits Tansy’s or your aunt Maud’s?”

From "The Teacher’s Funeral" by Richard Peck