Find Antonyms

surmise Antonyms

Opposite of surmise

Because the opposite of surmise shifts with each meaning, the 12 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• verb (Context 1)

To suppose or infer that something is true without having conclusive evidence to confirm it.

Usage Example

"From the mud on the dog's paws, we could easily know that it had been digging in the garden again."

Strongest
know
prove
verify
confirm
Strong
ascertain
demonstrate

• noun (Context 2)

A supposition, guess, or conclusion formed on the basis of incomplete evidence rather than certain knowledge.

Usage Example

"The historian's conclusion regarding the author's identity remained a plausible certainty until the original letters were discovered."

Strongest
certainty
fact
proof
Strong
reality
truth
knowledge

Similar words to surmise

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

supposition
conjecture
guess
suppose
suspect
speculation
infer
deduce
See all synonyms of surmise

• Nearby Words

surgically
surliness
surly
surmise
surmount
surmountable
surname

Cite this Entry

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