fast 1 of 4

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fast

2 of 4

adjective

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2
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4
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as in sturdy
marked by the ability to withstand stress without structural damage or distortion as the storm approached, we checked to see that every thing on the outside of the house was fast and locked in position

Synonyms & Similar Words

Antonyms & Near Antonyms

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as in quick
having or showing quickness of mind I don't know how to operate this machine, but I'm a fast learner

Synonyms & Similar Words

Antonyms & Near Antonyms

fast

3 of 4

noun

fast

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verb

Synonym Chooser

How does the adjective fast contrast with its synonyms?

Some common synonyms of fast are expeditious, fleet, hasty, quick, rapid, speedy, and swift. While all these words mean "moving, proceeding, or acting with celerity," fast and rapid are very close in meaning, but fast applies particularly to the thing that moves.

fast horses

When can expeditious be used instead of fast?

The words expeditious and fast are synonyms, but do differ in nuance. Specifically, expeditious suggests efficiency together with rapidity of accomplishment.

the expeditious handling of an order

When is it sensible to use fleet instead of fast?

While the synonyms fleet and fast are close in meaning, fleet adds the implication of lightness and nimbleness.

fleet runners

In what contexts can hasty take the place of fast?

Although the words hasty and fast have much in common, hasty suggests hurry and precipitousness and often connotes carelessness.

a hasty inspection

When would quick be a good substitute for fast?

In some situations, the words quick and fast are roughly equivalent. However, quick suggests promptness and the taking of little time.

a quick wit

When might rapid be a better fit than fast?

The meanings of rapid and fast largely overlap; however, rapid applies to the movement itself, rather than to the thing that moves.

rapid current

When is speedy a more appropriate choice than fast?

The words speedy and fast can be used in similar contexts, but speedy implies quickness of successful accomplishment and may also suggest unusual velocity.

speedy delivery of mail

When could swift be used to replace fast?

While in some cases nearly identical to fast, swift suggests great rapidity coupled with ease of movement.

returned the ball with one swift stroke

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of fast
Adverb
Meanwhile, Muslims have long eaten its fruits to break the daily fast of Ramadan. Jacob Jones, JSTOR Daily, 13 Aug. 2025 What To Know Archaeologist Mordechai Ehrlich found the clay seal while examining material recovered by the Temple Mount Sifting Project, and project researchers rapidly analyzed and publicly announced the artifact shortly before the Jewish fast of Tisha B'Av. Theo Burman, MSNBC Newsweek, 12 Aug. 2025
Adjective
Top marks in the cross country ski department went to Rossignol’s X-Ium Premium+ Skate SX, an expert-level classic ski that’s fun and fast enough to place on the podium. Outside Editors, Outside, 16 Oct. 2025 One of the reasons why Muslims fast during Ramadan is to remember those who are oppressed or suffering, and to share in those emotions. Miami Herald, 13 Oct. 2025
Noun
This happens when water in front of the tire builds up faster than the vehicle's weight can push water out of the way. Nc Weather Bot, Charlotte Observer, 30 Oct. 2025 Like most freshmen playing at a high-major school, the game moved too fast for him at times last season. Steven Johnson, Fort Worth Star-Telegram, 30 Oct. 2025
Verb
According to SeaWorld Orlando’s website, Mako is the city’s tallest and fastest roller coaster. Colson Thayer, PEOPLE, 29 Oct. 2025 This is a subtle clue that something may be wrong, but not a hard and fast rule. Colleen Doherty, Verywell Health, 29 Oct. 2025 See All Example Sentences for fast
Recent Examples of Synonyms for fast
Adverb
  • After September’s move, Kalshi traders quickly repriced the rest of 2025, concentrating on a two-cut scenario (October and December) and leaving a tail for only one more cut or, less likely, a larger November–December adjustment.
    Robert Daugherty, Forbes.com, 29 Oct. 2025
  • The president imposed crippling tariffs on China in April but then quickly lowered them.
    Mira Rapp-Hooper, Foreign Affairs, 29 Oct. 2025
Adverb
  • The experiment discovered that AI could fulfill this role quite well.
    François Candelon, Fortune, 31 Oct. 2025
  • The maze is quite scary, including an It-style clown with a chainsaw, chainsaw-wielding doctors in scrubs, and Beryl at the center of it all as the town’s biggest cultural claim to fame, the Headless Horseman.
    Sophie Brookover, Vulture, 31 Oct. 2025
Adjective
  • The rapid advances of AI and the ceaseless scheming of cybercriminals and hackers make cyber startups one of the most dynamic and innovative sectors of the tech industry, Chahal says.
    Alexei Oreskovic, Fortune, 30 Oct. 2025
  • For all the confidence from trade negotiators in recent days and the leaders’ warm remarks as talks got underway in Busan, whether the meeting would take place at all remained an open question just days ago after a rapid escalation of frictions between the two sides.
    Betsy Klein, CNN Money, 30 Oct. 2025
Adjective
  • The ghoulish pet is ever-present in the movie, portraying itself as a friendly and loyal companion to Jack in his journeys between realms.
    Lisa Stardust, PEOPLE, 28 Oct. 2025
  • This milestone honors both the brand’s journey and its loyal following worldwide.
    Essence, Essence, 28 Oct. 2025
Adjective
  • There’s something rare about Swain, who is a young brainiac, but one who has built his business the old-fashioned, pre-quant-trading and Excel models Wall Street way, via charm offensives that weave webs of tight relationships few rivals can match.
    Shawn Tully, Fortune, 1 Nov. 2025
  • Money was tight, especially when Smith’s father, who worked as a machinist after returning from World War II, was on strike.
    Amy Weiss-Meyer, The Atlantic, 31 Oct. 2025
Adjective
  • In New Jersey, creating or sharing deceptive AI media can lead to prison time and fines.
    Kurt Knutsson, FOXNews.com, 25 Oct. 2025
  • But the first time around, producers relied on deceptive camera angles and some CGI to edit out her pregnancy belly.
    Shania Russell, Entertainment Weekly, 23 Oct. 2025
Adjective
  • Designed by Hydro Tec, the modern, muscular exterior is characterized by a sturdy steel displacement hull, a distinctive bulbous bow, and a lightweight aluminum superstructure.
    Rachel Cormack, Robb Report, 27 Oct. 2025
  • Be sure to cover your head and neck with your arms, and crawl under a sturdy table if possible.
    CA Earthquake Bot, Sacbee.com, 27 Oct. 2025
Adjective
  • For shorter getaways or everyday commuting, the Zella Travel Canvas Tote Bag is down to just $30—roomy enough for your essentials but lightweight enough to carry anywhere.
    Rosie Marder, Travel + Leisure, 31 Oct. 2025
  • Schumer wore a short Miu Miu button-down shirt dress and black heels — and the comments had kind words for her fitness progress.
    Madison E. Goldberg, PEOPLE, 31 Oct. 2025

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Cite this Entry

“Fast.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fast. Accessed 1 Nov. 2025.

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