posthaste
From WikiWord, the free dictionary
/ˌpəʊstˈheɪst/
English
Definitions
noun
- A great hurry.
adverb
- Quickly, as fast as someone travelling post; with great speed“It is imperative that you finish your task posthaste.”
Related words
Synonyms
ASAPquicklyoverfastsuperfastoverspeedilyamainfeverishlylightning fastfuriouslyrushinglyvelocefull tiltfull flinghell-for-leatherfoothotballs-outrankfull sail