How many syllables in posthaste?

There are 2 syllables in the word posthaste.

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How to pronounce posthaste:

Definition of posthaste:

posthaste (noun):: great haste

Synonyms for posthaste:

promptly speedily immediately hot fast soon quick apace briskly swift

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Antonyms for posthaste:

nonchalantly casually indolently leisurely sluggishly heavily deliberately lazily lethargically listlessly

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Other 2-syllable words like posthaste

Here are some other common words that have 2 syllables, like posthaste does.

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