posthaste
[ pohst-heyst ]
/ ˈpoʊstˈheɪst /
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Definition of posthaste
adverb
with the greatest possible speed or promptness: to come to a friend's aid posthaste.
noun
Archaic. great haste.
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How to use posthaste in a sentence
British Dictionary definitions for posthaste
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
Cultural definitions for posthaste
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.