Find Antonyms

supposing Antonyms

Opposite of supposing

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

To assume that something is the case on the basis of probable or incomplete evidence; to think or believe without certainty.

Usage Example

"She was knowing that the library would remain open during the holiday weekend."

Strongest
knowing
Strong
proving
verifying
doubting

• verb (Context 2)

To require as a necessary precondition or logical antecedent (of a theory, hypothesis, or state of affairs).

Usage Example

"This economic model fails by precluding a completely frictionless market."

Strong
precluding
excluding

Similar words to supposing

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

presupposing
assuming
presuming
if
requiring
entailing
expecting
necessitating
See all synonyms of supposing

• Nearby Words

suppose
supposed
supposedly
supposing
supposition
suppository
suppress

Cite this Entry

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