Find Antonyms

possibly Antonyms

Opposite of possibly

Because the opposite of possibly shifts with each meaning, the 10 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• adverb (Context 1)

Perhaps; maybe (used to indicate that something may or may not be true or happen).

Usage Example

"It will certainly rain later this afternoon, so you should bring an umbrella."

Strongest
certainly
definitely
surely
undoubtedly
unquestionably
Strong
inevitably
indubitably
never
impossible

• adverb (Context 2)

In accordance with what is able to be done; by any means (typically used with 'can' or 'could' for emphasis or in polite requests).

Usage Example

"Could you impossibly lend me a hand with these heavy boxes?"

Strongest
impossibly

Similar words to possibly

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

maybe
perhaps
conceivably
potentially
feasibly
imaginably
perchance
practically
See all synonyms of possibly

• Nearby Words

possessiveness
possibility
possible
possibly
post
post-truth
postaccident

Cite this Entry

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