Definition of post-haste in English:

post-haste

Line breaks: post-haste

adverb

With great speed or immediacy: she would go post-haste to England
More example sentences
  • The persons responsible ought to be prosecuted in the first instance, the deck must be removed post-haste and the destroyed vegetation replaced immediately.
  • Or was she so strapped for time that she had to write it in post-haste and not even proof read it once.
  • Our State and Federal Governments, intimidated by the medical fraternity's recent show of muscle, have scuttled new liability legislation through their parliaments post-haste.
Synonyms
as quickly as possible, without delay, (very) quickly, speedily, swiftly, without further/more ado, with all speed, promptly, immediately, at once, straight away, right away, directly, forthwith
informal double quick, p.d.q. (pretty damn quick), pronto, before you can say Jack Robinson, straight off

Origin

mid 16th century: from the direction ‘haste, post, haste’, formerly given on letters.

Definition of post-haste in:

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