ad. quickly, as fast as someone travelling post; with great speed
n. Alternative spelling of post-haste.
the GNU version of the Collaborative International Dictionary of English
n. Haste or speed in traveling, like that of a post or courier.
ad. With speed or expedition
The Century Dictionary and Cyclopedia
n. Haste or speed like that of a post or courier in traveling.
With the haste of a post; with speed or urgent expedition: as, he traveled post-haste.
Expeditious; speedy; immediate.
[The edition of 1623 reads “post, post-haste.”]
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. as fast as possible; with all possible haste
Word Usage
"A dozen miles to the north, the defeated Istarian army huddled against the outer walls of the city, awaiting reinforcements recalled posthaste from their stations along the Thoradin border."