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
  • During totality, the temperature could briefly fall by 18 degrees Fahrenheit (10 degrees Celsius) before rising rapidly again once the sun reappears.
    — Jamie Carter, Forbes.com, 16 Aug. 2026
  • Skeptics have questioned whether graphics processing units (GPUs) can support this type of financing because the chips have historically been viewed as rapidly depreciating technology.
    — Alexa LoMonaco, CNBC, 15 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
  • The soft nylon and elastane quick-drying fabric packs down to practically nothing and doesn’t hold any wrinkles.
    — Mariette Williams, Travel + Leisure, 13 Aug. 2026
  • Save as a collection on MyRecipes With these one-dish pasta suppers, dinner can be on the table quickly—and cleaned up even quicker.
    — Jenna Sims, Southern Living, 12 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
  • Clark immediately started limping and grimaced as she was subbed out.
    — James Boyd, New York Times, 15 Aug. 2026
  • Instead of committing immediately to a single vehicle architecture, the Army is effectively subjecting multiple approaches to the same test regime and allowing battlefield performance to determine which ones deserve further investment.
    — Kaif Shaikh, Interesting Engineering, 14 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 17 Aug. 2026.

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