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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
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
The present is always coming at us so hard and fast that the unexamined past fades more from consciousness in the echo chamber of the now. Kansas City Star, 27 Sep. 2025 And now, fast forward to today, these programs kept growing. Laura Isensee, Scientific American, 25 Sep. 2025
Noun
Shades of rose gold had not yet hit the hills above the Chavez Ravine, and Aaron Nola had already thrown two pitches faster than anything that had left his hand since July 2024. Charlotte Varnes, New York Times, 9 Oct. 2025 Instead of relying on smelting or harsh acids, Endolith’s microbes attach to the ore and pull out the copper faster. IEEE Spectrum, 9 Oct. 2025
Verb
While some savings are available to those without a Prime account, the best of these great deals and most significant discounts (as well as the fastest shipping times) are usually reserved for Prime members. Audrey Lee, Architectural Digest, 8 Oct. 2025 These are smart, America First policies that would deliver fast results. Kimberly Glas, MSNBC Newsweek, 8 Oct. 2025 See All Example Sentences for fast
Recent Examples of Synonyms for fast
Adverb
  • The devout Mormon quickly developed a penchant for partying like many a college student before her.
    David Oliver, USA Today, 7 Oct. 2025
  • Shuttle service is available but fills up quickly.
    Arkansas Online, Arkansas Online, 7 Oct. 2025
Adverb
  • Drama aside, Evans said that everyone became quite close as a result of living in the student-like quarters, sharing many cafeteria meals, and being vulnerable in a rather stressful experience, together.
    Shindy Chen, Charlotte Observer, 9 Oct. 2025
  • Resale values on premium EVs are notoriously bad, and with the possible exception of the Rolls-Royce Spectre, nobody has quite cracked the nut on how to build one that could conceivably be considered an heirloom.
    Tim Stevens, Robb Report, 9 Oct. 2025
Adjective
  • An end to the fighting is expected to lead to rapid increases in the supply of food and other basic needs.
    Greg Myre, NPR, 9 Oct. 2025
  • Over and over, the department has used the threat of pulling federal funding to force compliance with new directives and rapid shifts in policy.
    Megan O’Matz, ProPublica, 8 Oct. 2025
Adjective
  • The deputy’s body camera footage shows the loyal dog leading her straight to the spot where his owner’s mother had fallen.
    Alice Gibbs, MSNBC Newsweek, 7 Oct. 2025
  • Beneath Nkrumah’s elaborate rhetoric, Mazrui argued, lay a simple drive to consolidate control through a one-party state that would inevitably empower only his most loyal—and least thoughtful—allies.
    Kelefa Sanneh, New Yorker, 6 Oct. 2025
Adjective
  • That confusion is further reflected by the manic hyper-subjectivity of Bronstein’s filmmaking, which boxes Linda into a close-up so tight that everything around her — especially her unnamed daughter, who almost never appears on screen — might as well be a disembodied echo of her own anxiety.
    David Ehrlich, IndieWire, 10 Oct. 2025
  • Like Lawrence, Sam Darnold isn’t squeamish about passing into tight windows or risking an INT blemish.
    Steven Louis Goldstein, New York Times, 10 Oct. 2025
Adjective
  • Unboxed, these black silicone bands look unassuming, but their simplicity is deceptive.
    Laura Paddison, CNN Money, 7 Oct. 2025
  • The shuttering of the agency that enforces laws against anticompetitive and deceptive business behavior is one small part of the national gridlock that began on Wednesday and could result in the furlough of 750,000 federal workers and delay air travel.
    Reuters, USA Today, 2 Oct. 2025
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, 7 Oct. 2025
  • The lone crack in Yesavage’s sturdy exterior came in the first inning.
    Mitch Bannon, New York Times, 6 Oct. 2025
Adjective
  • Earlier this month, Slick Rick invited an intimate audience to the historic Westlake Studios in Los Angeles to screen the short film.
    DeMicia Inman, VIBE.com, 9 Oct. 2025
  • Not nearly as greasy as a true balm, but richer than your typical face cream, this drugstore darling instantly soothes dry, chapped skin with the help of emollient shea butter, moisturizing vitamin B5, and calming madecassoside (a derivative of our fave, Centella asiastica, or cica for short).
    Lily Wohlner, Allure, 9 Oct. 2025

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Cite this Entry

“Fast.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fast. Accessed 11 Oct. 2025.

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