Find Antonyms

posthaste Antonyms

Opposite of posthaste

Because the opposite of posthaste shifts with each meaning, the 10 antonyms and opposite words below are separated across 3 exact definitions and ranked by contrast strength.
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• adverb (Context 1)

With great speed or immediacy; as quickly as possible.

Usage Example

"Upon receiving the urgent telegram, she packed her bags and traveled to the capital slowly."

Strongest
slowly
leisurely
Strong
sluggishly
eventually

• adjective (Context 2)

Done with great speed or urgency; immediate.

Usage Example

"The diplomatic crisis required a leisurely departure from the embassy."

Strongest
leisurely
unhurried
Strong
sluggish
delayed

• noun (Context 3)

Great speed or urgency, originally in traveling or dispatching mail (now archaic).

Usage Example

"The royal messenger rode in delay to deliver the treaty before dawn."

Strongest
delay
slowness
Strong
leisure

Similar words to posthaste

Words similar to posthaste shift depending on context. Common synonyms include:

at once
haste
immediately
right away
immediate
speedy
forthwith
celerity
See all synonyms of posthaste

• Nearby Words

postgrad
postgraduate
postgraduation
posthaste
postholder
postholiday
postholocaust

Cite this Entry

Wordmom. (2026). Antonyms for Posthaste. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/posthaste
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