c(1) of a timepiece or weighing device : indicating in advance of what is correct Your clock is two minutes fast.

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e : acquired with unusually little effort và often by shady or dishonest methods had a keen eye for a fast buck— R. A. Keith
8 : resistant khổng lồ change (as from destructive action or fading) fast dyes —often used in combination sunfastacid-fast bacteria

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Synonyms & Antonyms for fast

Synonyms: Adjective

Synonyms: Adverb

Antonyms: Adjective

Antonyms: Adverb

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fast, rapid, swift, fleet, quick, speedy, hasty, expeditious mean moving, proceeding, or acting with celerity. Fast và rapid are very close in meaning, but fast applies particularly to lớn the thing that moves fast horses & rapid khổng lồ the movement itself. rapid current swift suggests great rapidity coupled with ease of movement. returned the ball with one swift stroke fleet adds the implication of lightness và nimbleness. fleet runners quick suggests promptness & the taking of little time. a quick wit speedy implies quickness of successful accomplishment speedy delivery of mail & may also suggest unusual velocity. Hasty suggests hurry & precipitousness and often connotes carelessness. a hasty inspection expeditious suggests efficiency together with rapidity of accomplishment. the expeditious handling of an order

Adjective She's a very fast runner. We're off lớn a fast start. We're now experiencing a faster rate of inflation. We took the faster route. Adverb The boss expects this lớn be done this afternoon, so you'd better work fast. He ran as fast as he could. This is fast becoming a national problem. You need to lớn act fast lớn take advantage of this offer. I don't know what caused the accident. It all happened so fast. She's a woman who can think fast in a crisis. He's going to have to lớn talk fast lớn get himself out of this mess. The window was stuck fast. She held fast lớn her belief in justice. We must stand fast và not surrender! Verb She always fasts on Yom Kippur. Patients must fast for six hours before having the procedure. See More

Phrases Containing fast

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First Known Use of fast


before the 12th century, in the meaning defined at sense 1a


before the 12th century, in the meaning defined at sense 1


before the 12th century, in the meaning defined at sense 1

Noun (1)

12th century, in the meaning defined at sense 1

Noun (2)

15th century, in the meaning defined above

History & Etymology for fast

Adjective and Adverb

Middle English, from Old English fæst; akin khổng lồ Old High German festi firm, Old Norse fastr, Armenian hast

Verb và Noun (1)

Middle English, from Old English fæstan

Noun (2)

alteration of Middle English fest, from Old Norse festr rope, mooring cable, from fastr firm

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Time Traveler for fast


The first known use of fast was before the 12th century

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