English dictionary
posthaste
/'p/oU/st'h/eI/st/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
-
Haste or speed in traveling, like that of a post or courier.
Source: webster1913
adverb
-
With speed or expedition; as, he traveled <i>posthaste</i>; to send <i>posthaste</i>.
Source: webster1913