definitions

posthaste

[ pohst-heyst ]
/ ˈpoʊstˈheɪst /
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SEE MORE SYNONYMS FOR posthaste ON THESAURUS.COM

adverb

with the greatest possible speed or promptness: to come to a friend's aid posthaste.

noun

Archaic. great haste.

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RELATED WORDS

rapid, energetic, cursory, hasty, agile, brisk, brief, immediate, instantaneous, nimble, sudden, abrupt, hurried, active, expeditious, keen, swift, hot, quick, rapidly

Nearby words

postganglionic motor neuron, postgastrectomy syndrome, postglacial, postgrad, postgraduate, posthaste, postheat, posthepatitic cirrhosis, posthioplasty, posthitis, posthole

Origin of posthaste

First recorded in 1530–40; post3 + haste
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for post-haste

British Dictionary definitions for post-haste

posthaste

/ (ˈpəʊstˈheɪst) /

adverb

with great haste; as fast as possible

noun

archaic great haste
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Culture definitions for post-haste

posthaste

[ (pohst-hayst) ]

Immediately, with great speed: “Get the flood warning to the media posthaste.”

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.