post haste
Speech parts
1. post haste - Noun
2. post haste - Adverb
Meaning
as fast as possible; with all possible haste
Source: WordNetAlternative names
post-haste
Synonyms
quickly
asap
now
soon
directly
immediately
rapidly
FAST
instantly
promptly
abruptly
swiftly
right away
speedily
headlong
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Antonyms
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send it to me post-haste