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
  • With the interference removed, the transport molecules can quickly stick to the flexible base, while the new additive guides crystal growth and seals up flaws in the perovskite layer.
    — Mrigakshi Dixit, Interesting Engineering, 26 Oct. 2026
  • Bolsonaro quickly refused to concede defeat and asked for the election results to be annulled after an evening of chaos at some polling places that followed a last-minute decision to extend voting by two hours.
    — Arkansas Online, Arkansas Online, 26 Oct. 2026
Definition of quickly
Adverb
  • Future quantum applications The team sees potential applications in electronics that consume less power and switch states rapidly.
    — Aamir Khollam, Interesting Engineering, 23 Oct. 2026
  • Foot-and-mouth disease spreads rapidly among livestock and can force mass culling, movement restrictions, and trade disruptions.
    — Robert Kelly, Fortune, 22 Oct. 2026
Definition of rapidly
Adverb
  • The Florida Department of Law Enforcement and other local agencies swiftly took action, arrested the caller and took him to the Palm Beach County Jail.
    — Devoun Cetoute, Miami Herald, 22 Oct. 2026
  • The memo went out like the bat signal, and Danica promptly — and swiftly — took action.
    — Zach Dean OutKick, FOXNews.com, 21 Oct. 2026
Definition of swiftly
Adverb
  • Every story comes to an end, but the end comes quicker for small publishers.
    — Literary Hub, Literary Hub, 21 Oct. 2026
  • Most importantly, its extra RAM makes third-party apps feel quicker than on its sluggish predecessor.
    — Will Greenwald, PC Magazine, 16 Oct. 2026
Definition of quick
Adverb
  • Rose soon shed their Americana trappings, publicly embraced their queerness, and revamped their musical identity.
    — Zach Schonfeld, Pitchfork, 26 Oct. 2026
  • Voters in six states will soon decide whether to impose or expand voter identification requirements, including rules requiring mail voters to provide part of a driver’s license or Social Security number.
    — Kaelan Deese, The Washington Examiner, 25 Oct. 2026
Definition of soon
Adverb
  • That could represent either a benefit or a risk for shareholders, as decision-making would become faster but have fewer checks.
    — Miranda Jeyaretnam, Time, 21 Oct. 2026
  • Its stainless steel body can last for years of making pour-over coffee every morning or evening cups of hot tea, and the kettle also comes in handy to boil water fast for everyday recipes.
    — Caley Sturgill, Southern Living, 21 Oct. 2026
Definition of fast
Adverb
  • Report a new lump, thickened area, persistent ulcer or unexplained bleeding promptly.
    — Emily Cegielski, Flow Space, 20 Oct. 2026
  • When Weiss and her aides shift coverage closer to Israel’s point of view, their actions promptly leak to outlets like the Guardian and Status, the daily media newsletter that has relentlessly chronicled Weiss’ real and perceived missteps.
    — semafor.com, semafor.com, 19 Oct. 2026
Definition of promptly
Adverb
  • Federal policy now allows businesses to deduct domestic research costs immediately, leaving more capital available for engineers, prototypes, and equipment.
    — Rick Lazio, Fortune, 24 Oct. 2026
  • There was little in the way of heavy equipment immediately available.
    — Arkansas Online, Arkansas Online, 24 Oct. 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 27 Oct. 2026.

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