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 Red Sox scored first and took two leads in the game, but both disappeared quickly.
    — Gabrielle Starr, Boston Herald, 12 Aug. 2026
  • The system can detect changes quickly and generate alerts for security teams.
    — Aamir Khollam, Interesting Engineering, 12 Aug. 2026
Definition of quickly
Adverb
  • That fire was triggered by land-clearing activities and spread rapidly to surrounding areas, fueled by dry conditions.
    — ABC News, ABC News, 9 Aug. 2026
  • Water starts rapidly flooding the house, with a creature swimming through, clearly adept at moving underwater as had been predicted.
    — William Earl, Variety, 8 Aug. 2026
Definition of rapidly
Adverb
  • Bar-Zemer contends that safety features could be installed to make sure pedestrians have enough time to exit the pathway if water rises swiftly.
    — Los Angeles Times, Los Angeles Times, 10 Aug. 2026
  • Given that Furious has established a track record of taking excellent actors and then swiftly killing them by Catherine’s hand, this reveal might illustrate that Emma (the exemplary Hope Davis) is the next to go.
    — Erin Qualey, Vulture, 10 Aug. 2026
Definition of swiftly
Adverb
  • Cards replaced cash, and wallets replaced cards, while QR codes and tokenization made payments quicker and safer.
    — Sailesh Sewpaul, Forbes.com, 6 Aug. 2026
  • The system was meant to streamline resources to campuses quicker by creating regional offices that are closer to campuses than the overall district office is.
    — Fort Worth Star-Telegram, Fort Worth Star-Telegram, 5 Aug. 2026
Definition of quick
Adverb
  • The annual Corky Kell + Dave Hunter Classic will kick off sooner than usual to accommodate booking conflicts with Mercedes-Benz Stadium.
    — Jack Leo, AJC.com, 12 Aug. 2026
  • Immigration and Customs Enforcement agents and officers may soon be equipped with gloves that deliver electrical shocks, which the manufacturer says are intended to de-escalate encounters with individuals.
    — Julianna Bragg, CNN Money, 12 Aug. 2026
Definition of soon
Adverb
  • Pyroclastic flows – fast-moving clouds of scorching gas, ash, and rock – could devastate territory near the caldera.
    — Atharva Gosavi, Interesting Engineering, 12 Aug. 2026
  • Sacramento County is also looking at ways to regulate the growing popularity of e-bikes, which can go much faster than a regular bike and potentially cause more serious injuries.
    — James Taylor, CBS News, 12 Aug. 2026
Definition of fast
Adverb
  • Clean up dog poop promptly; keep up with veterinary care and parasite prevention; and clean the bowls, bedding, crates, and toys of a pet being treated for giardia.
    — Angela Haupt, Time, 12 Aug. 2026
  • The Dodgers had lost seven in a row before finally winning Saturday at Arizona, then promptly resumed the slide Sunday with a loss to the Diamondbacks.
    — Los Angeles Times, Los Angeles Times, 11 Aug. 2026
Definition of promptly
Adverb
  • Reading it immediately quells, or at least quelled my own, paranoia at being alone in the middle of the forest—nobody is getting got here, there’s a gate that only opens if the concierge approves of your face, voice, and name.
    — Condé Nast, Condé Nast Traveler, 8 Aug. 2026
  • The relationship of the women, both 28, to the child was not immediately clear.
    — Tim Stelloh, NBC news, 8 Aug. 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 14 Aug. 2026.

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