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posthaste

adverb

Definition of posthastenext
as in quickly
with great speed ran posthaste for the doctor

Synonyms & Similar Words

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Antonyms & Near Antonyms

Example Sentences

Recent Examples of Synonyms for posthaste
  1. quickly
  2. rapidly
  3. swiftly
  4. quick
  5. soon
  6. fast
  7. promptly
  8. immediately
Adverb
  • The ceasefire quickly unraveled, and the 60-day deadline passed last month with no breakthroughs.
    — Arkansas Online, Arkansas Online, 28 Sep. 2026
  • The father-daughter pair embraced as Verlander started to cry, and the crowd quickly rose to their feet for a standing ovation.
    — Charlotte Phillipp, PEOPLE, 27 Sep. 2026
Definition of quickly
Adverb
  • September 24, 2026 AI is rapidly changing how top leaders communicate with employees, customers, boards, and each other.
    — Harvard Business Review, Harvard Business Review, 24 Sep. 2026
  • The tragedy has shaken students across campus Across campus, vending machines that offer free Narcan – an over-the-counter nasal spray version of naloxone used to rapidly reverse the effects of an opioid overdose – have been emptied, WMC reported.
    — Cindy Von Quednow, CNN Money, 24 Sep. 2026
Definition of rapidly
Adverb
  • Some are condemned swiftly and harshly, others are shrugged off almost entirely.
    — Matt Calkins OutKick, FOXNews.com, 24 Sep. 2026
  • Investment firms have swiftly raised price targets for Meta, as the company now has a compelling new narrative to pitch to Wall Street.
    — , CNBC, 23 Sep. 2026
Definition of swiftly
Adverb
  • Pennsylvania State Police makes that possible quicker than most police departments.
    — Josh Taylor, CBS News, 18 Sep. 2026
  • Because of their small size, the little dots of pasta cooked up quicker than the standard ones, which means dinner was ready in no time.
    — Nina Moskowitz, Bon Appetit Magazine, 17 Sep. 2026
Definition of quick
Adverb
  • Deer are not appearing much on camera during the daytime, but that might change soon.
    — Bryan Hendricks, Arkansas Online, 27 Sep. 2026
  • The giant planet formed fairly soon after the sun (within a million years).
    — Keith Cooper, Space.com, 27 Sep. 2026
Definition of soon
Adverb
  • Washington can’t stop talking about AI doom scenarios and the public backlash to data centers — but around the world, sentiment toward the fast-moving technology is much more nuanced.
    — Morgan Chalfant, semafor.com, 23 Sep. 2026
  • Development teams are producing code faster, modernizing applications more rapidly and introducing new services at unprecedented rates.
    — Evgeny Gervis, Forbes.com, 22 Sep. 2026
Definition of fast
Adverb
  • Usually, the German federal chancellor does not comment so promptly on state election results, especially for two states with relatively small electorates.
    — Esme Nicholson, NPR, 21 Sep. 2026
  • Herbert handed off to Omarion Hampton on a draw, and the second-year back was met by linebacker Nakobe Dean and promptly fumbled — one of six on the day for the Chargers.
    — Los Angeles Times, Los Angeles Times, 20 Sep. 2026
Definition of promptly
Adverb
  • The league immediately decided Juszczyk was imitating drinking beer.
    — Armando Salguero OutKick, FOXNews.com, 25 Sep. 2026
  • Abbott, who begins work immediately, joins the museum as its sixth director since 2008.
    — Jessica Gelt, Los Angeles Times, 25 Sep. 2026
Definition of immediately
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.

Browse Nearby Words

postgraduates
posthaste
posthole
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Cite this Entry

“Posthaste.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/posthaste. Accessed 29 Sep. 2026.

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