fast1
adjective
1 a fast sports car | the game is played at a fast pace:
speedy, quick, swift, rapid;
brisk, nimble, sprightly, lively;
fast-moving, high-speed, turbo, sporty, accelerated, express, flying;
whirlwind, blistering, breakneck, pell-mell, meteoric, smart;
hasty, hurried;
unhesitating, expeditious;
fleet-footed;
informal nippy, zippy, spanking, scorching, blinding, supersonic;
British, informal cracking;
literary fleet;
rare tantivy, alacritous, volant.
▷antonyms slow.
2 his hand slammed against the door, holding it fast:
secure, secured, fastened, tight, firmly fixed;
stuck, jammed, immovable, unbudgeable, stiff;
closed, shut, to.
▷antonyms loose.
3 the dyes are boiled with yarn to produce a fast colour:
indelible, lasting, permanent, stable.
▷antonyms temporary.
4 they remained fast friends:
loyal, devoted, faithful, firm, steadfast, staunch, true, boon, bosom, inseparable;
constant, lasting, unchanging, unwavering, enduring, unswerving;
informal as thick as thieves.
5 the fast life she led in London:
wild, dissipated, dissolute, debauched, intemperate, immoderate, louche, rakish, decadent, unrestrained, reckless, profligate, self-indulgent, shameless, sinful, immoral, extravagant;
informal swinging.
▷antonyms sedate.
adverb
1 she drove fast towards the gates:
quickly, rapidly, swiftly, speedily, briskly, at speed, at full speed, at full tilt;
energetically;
hastily, with all haste, in haste, hurriedly, in a hurry, post-haste, pell-mell;
without delay, expeditiously, with dispatch, like a shot, like a flash, in a flash, in the blink of an eye, in a wink, in a trice, in no time (at all), on the double, at the speed of light, like an arrow from a bow;
informal double quick, in double quick time, p.d.q. (pretty damn quick), nippily, like (greased) lightning, at warp speed, hell for leather, like mad, like crazy, like the wind, like a bomb, like nobody's business, like a scalded cat, like the deuce, a mile a minute, like a bat out of hell, at warp speed;
British, informal like the clappers, at a rate of knots, like billy-o;
North American, informal lickety-split;
literary apace.
▷antonyms slowly.
| word links | fast |
related prefix, as in tachycardia, tachygraphy | |
fast (1) Oxford Dictionary of English