fast 1 of 4

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fast

2 of 4

adjective

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2
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4
5
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

4 of 4

verb

as in to diet

Synonyms & Similar Words

Antonyms & Near Antonyms

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a fast response
a quick response
a timely response
a speedy response
a rapid response
a same-day response
a fast pace
an accelerated pace
a swift pace
a rapid pace
a quick pace
a frantic pace
a fast track
a focused track
an expeditious track
a quick track
a rapid track
an advanced track
a fast service
a quick-response service
an efficient service
a prompt service
an instant service
a timely service
a fast growth
a rapid growth
a drastic growth
a swift growth
a sharp growth
a strong growth

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
But the administration is breaking down norms and setting precedents faster than judges can stop it. Garry Kasparov, The Atlantic, 17 Apr. 2025 This happens when water in front of the tire builds up faster than the vehicle's weight can push water out of the way. Kansas City Star Weather Bot, Kansas City Star, 17 Apr. 2025
Adjective
Secretary of State Shirley Weber told The Bee last week that faster counting could come at the expense of longer ballot-curing periods Most California voters – 58% – also oppose giving the federal government more control over state election administration. Nicole Nixon, Sacbee.com, 9 May 2025 In the event of a delay or cancellation, the app is often the fastest path to rebooking another flight. Suzanne Rowan Kelleher, Forbes.com, 9 May 2025
Noun
At sunset, when Muslims rush home to break the fast with the iftar meal, the business owner stands on a street corner pouring out licorice juice from a giant metal pot. Dominique Soguel, Christian Science Monitor, 27 Mar. 2025 In an interview with AP, Adra said settlers entered Susya Monday evening shortly after residents broke the daily fast for the Muslim holy month of Ramadan. Edward Segarra, USA TODAY, 25 Mar. 2025
Verb
Extremely precise, but not especially fast without practice. New Atlas, 10 Apr. 2025 The large internal heat diffuser spreads warm air evenly, drying your clothes fast, even bulkier loads. Christopher Murray, FOXNews.com, 9 Apr. 2025 See All Example Sentences for fast
Recent Examples of Synonyms for fast
Adverb
  • Halper, of Top Ten Liquors, isn’t quite sure what to expect from the federal government.
    Danielle Wiener-Bronner, CNN Money, 10 May 2025
  • When that happens, their buzzing calls used to attract mates are quite loud.
    Rick Sobey, Boston Herald, 10 May 2025
Adjective
  • Unfortunately, the Carolina parakeet’s story is one of rapid decline and eventual extinction, driven by human activities.
    Scott Travers, Forbes.com, 3 May 2025
  • The rapid heat change also disrupted the levels of nutrients like sulfur and iron within the oceans.
    Paul Smaglik, Discover Magazine, 2 May 2025
Adjective
  • Chalamet has stayed loyal to Guadagnino and to Italy, attending the Venice film festival for the premiere of Denis Villeneuve’s Dune: Part 1 in 2021 and again a year later with Bones and All (2022), a horror romance directed by Guadagnino and co-starring Taylor Russell.
    Scott Roxborough, HollywoodReporter, 2 May 2025
  • But nonetheless, the band has maintained an incredibly loyal following.
    Andy Greene, Rolling Stone, 2 May 2025
Adjective
  • And don’t even think about trying to change clothes in a tight plane bathroom.
    Rylee Johnston, Travel + Leisure, 10 May 2025
  • Construction budgets will also increase if tighter immigration policies result in labor shortages.
    Ted Reed, Forbes.com, 10 May 2025
Adjective
  • In the 1970s, information about the Tuskegee study – a deceptive and unethical 40-year study of untreated syphilis in Black men – came to light.
    Christine Coughlin, The Conversation, 9 May 2025
  • Anyone wanting to fight such usage would have to rely on deceptive practice laws, trademark and copyright protection, and state-specific laws protecting a person's name, image, and likeness.
    Neil J. Rubenking, PC Magazine, 2 May 2025
Adjective
  • Best Minimalist Pick: Kuru Flex Via Kuru may specialize in sturdy, supportive shoes—but that doesn’t mean all of its pairs feel clunky.
    Sara Coughlin, SELF, 1 May 2025
  • It’s also loaded with features like USB passthrough and a sturdy wrist rest.
    Shubham Yewale, PC Magazine, 1 May 2025
Adjective
  • In short, fate’s distribution of long straws is wildly capricious.
    Jonathan Limehouse, USA Today, 4 May 2025
  • This photo provided by Guinness World Records shows Pearl, the world's shortest living dog, with Reginald, the world's tallest living dog, both certified by Guinness World Records, during a playdate in Idaho Falls, Idaho, April 5, 2025.
    Alexandra Koch, FOXNews.com, 4 May 2025
Adjective
  • Timberwolves coach Chris Finch gave Randle a quick hook, sending the forward to the bench for the next two minutes of action, much to Randle’s dismay — which was evident in the veteran’s body language.
    Jace Frederick, Twin Cities, 10 May 2025
  • The bear blew past him half a stride, dug its front claws in the dirt, then spun a quick 180 and lunged at Bentzel.
    Benjamin Alva Polley, Rolling Stone, 10 May 2025

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Cite this Entry

“Fast.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fast. Accessed 13 May. 2025.

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