Meaning & use

post-haste

adverb·Advancedold-fashionedliterary

Last updated

UK/ˌpəʊstˈheɪst/
US/ˌpoʊstˈheɪst/

Meaning

  1. adverbnot comparableold-fashioned

    As fast as possible, with no delay.

    Grammar: Usually follows a verb of going, leaving or sending: left post-haste, sent post-haste.

    Patterns

    • leave post-haste
    • go post-haste
    • send something post-haste

    The manager rushed post-haste to the airport.

    She sent the documents post-haste once she heard the deadline had moved.

    When the alarm sounded, they left the building post-haste.

Common combinations

leave post-haste
The guests left post-haste when the rain began.
send post-haste
The letter was sent post-haste to the capital.
hurry post-haste
He hurried post-haste to the station.
come post-haste
Come post-haste, the doctor is waiting.
depart post-haste
The thief departed post-haste through the back door.

Synonyms and how they differ

immediately
Immediately is plain and neutral, while post-haste sounds old-fashioned or humorous.
hastily
Hastily often suggests carelessness through rushing, but post-haste only stresses speed.
at once
At once is everyday English and simple, while post-haste adds a dramatic, old-style tone.
pronto
Pronto is a very informal, slangy word for quickly, so it is less formal than post-haste.

Opposites

Word family

haste noun
great speed or hurry
hasty adjective
done too quickly
hastily adverb
in a hurried way
hasten verb
to hurry or make something happen sooner

Commonly confused: post-haste or post-hoc?

post-haste vs post-hoc

Post-hoc means after the event, as in a post-hoc explanation. It has nothing to do with speed.

Practice

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