posthaste

adverb
UK: /ˌpəʊstˈheɪst/
US: /ˌpoʊstˈheɪst/
  1. With great speed or urgency; immediately.

    1. We need the package posthaste.
    2. The message requested that she return home posthaste upon receiving it.
posthaste noun
  1. The act of doing something very quickly or urgently.

    1. He left in posthaste this morning.
    2. The project required posthaste due to the approaching deadline.

Frequently Asked Questions

The phonetic transcription of "posthaste" is /ˌpəʊstˈheɪst/ in British English and /ˌpoʊstˈheɪst/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "posthaste": immediately, forthwith.

Example usage of "posthaste": "We need the package posthaste.". More examples on the page.