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Definition of fastnext
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fast

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adjective

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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

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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
For best results, the outlet recommends taking gummies about 30 to 60 minutes before workouts and pairing them with a small source of fast-acting carbs like fruit juice to boost uptake. Samantha Agate, Kansas City Star, 24 June 2026 And a fast-growing optimization crowd treats testing as one more lever to pull for better energy, mood, weight and even longevity. Ryan Brennan, Miami Herald, 24 June 2026
Adjective
Shake Shack, the popular fast food joint, opened up underneath the Martin earlier this month, with lines stretching down the street, Rupert said. Molly Gibbs, Mercury News, 23 June 2026 The fastest route to decarbonization has often relied on supply chains dominated by a small number of countries, raising concerns about resilience and strategic vulnerability. Sebastian Buckup, Fortune, 23 June 2026
Noun
The fast can also continue into Easter Vigil, which takes place on Holy Saturday night. Mariyam Muhammad, Cincinnati Enquirer, 1 Apr. 2026 The Lenten fast is traditionally broken with tsoureki, magiritsa (a lamb soup finished with avgolemono sauce), and a bowl of red Easter eggs. Saveur Editors, Saveur, 1 Apr. 2026
Verb
There is also an emerging industry for using drones to deliver packages – everything from transplant organs to fast food meals. Agamemnon Crassidis, The Conversation, 11 June 2026 Put another way, earnings have been so strong that analysts can’t raise their estimates fast enough. Fred Imbert, CNBC, 26 May 2026 See All Example Sentences for fast
Recent Examples of Synonyms for fast
Adverb
  • Hired for four years at a salary of $440,000, Carvalho quickly adopted a strategic plan that included detailed, regular review of a school’s test scores — from both the annual state tests and periodic district assessments.
    Howard Blume, Los Angeles Times, 22 June 2026
  • That came one week after Cape Verde held Spain's superstars scoreless in a 0-0 draw in their opener in Atlanta behind a stellar performance from goalie Vozinha, who quickly became one of the biggest stories of the tournament.
    ABC News, ABC News, 21 June 2026
Adverb
  • Ament didn’t quite reach his offensive potential at Tennessee, but this is not dissimilar to the gamble the Bucks once took on a young Antetokounmpo.
    Rohan Nadkarni, NBC news, 24 June 2026
  • But the Clippers have shaken up their team quite a bit in the last few months and are a team worth watching this week.
    Tony East, Forbes.com, 24 June 2026
Adjective
  • Earthquakes' sudden, rapid shaking can cause fires, tsunamis, landslides or avalanches.
    CA Earthquake Bot, Sacbee.com, 23 June 2026
  • Improvements in blood tests, meanwhile, dovetail with rapid developments in treatments for various cancers, making the disease ever more survivable or even curable.
    Yuki Noguchi, NPR, 22 June 2026
Adjective
  • The uninitiated might be surprised that Game Changer has amassed a fiercely loyal, very active online fan base.
    Simon Thompson, HollywoodReporter, 21 June 2026
  • Cao is strategically building his team, repositioning competent legacy appointees to ensure continuity while fostering a loyal leadership cadre.
    Craig Hooper, Forbes.com, 21 June 2026
Adjective
  • Contrary to what those face-washing commercials from our childhood led us to believe, your skin doesn't need to feel tight or squeaky-clean after cleansing.
    Christa Joanna Lee, Allure, 24 June 2026
  • That was a fantastic finish into a tight window.
    Monica Alba, NBC news, 24 June 2026
Adjective
  • Despite criticism over opaque and deceptive practices, prediction markets’ election favorites won most of the time, a Washington Post analysis found; more liquid in betting markets improves their accuracy, economists told CNN, but could carry negative social costs.
    Brendan Ruberry, semafor.com, 23 June 2026
  • This is the essence of GPS spoofing, in which an attacker floods a GPS receiver with deceptive signals.
    Zita Ballinger Fletcher, Forbes.com, 23 June 2026
Adjective
  • Be sure to cover your head and neck with your arms, and crawl under a sturdy table if possible.
    CA Earthquake Bot, Sacbee.com, 19 June 2026
  • Serving tray for entertaining $25 to $50 This straightforward serving tray is a reliable standard that’s sturdy and comes in seven colors.
    BestReviews, Mercury News, 19 June 2026
Adjective
  • When in a forest, stay in proximity to shorter tree groupings.
    NC Weather Bot, Charlotte Observer, 23 June 2026
  • The tears weren't solely a result of coming up short at another major, but more so about the message his dad shared with him after Burns' Sunday surge up the leader board came up just short.
    Mark Harris OutKick, FOXNews.com, 22 June 2026

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Cite this Entry

“Fast.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fast. Accessed 25 Jun. 2026.

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