Find Antonyms

guess Antonyms

Opposite of guess

Because the opposite of guess shifts with each meaning, the 13 antonyms and opposite words below are separated across 4 exact definitions and ranked by contrast strength.
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• noun (Context 1)

An estimate, conclusion, or conjecture formed without sufficient information to be certain of being correct.

Usage Example

"Without a scale, my best certainty is that the package weighs about five pounds."

Strongest
certainty
fact
Strong
knowledge
proof
measurement

• verb (Context 2)

To estimate or conclude something without sufficient information to be sure of being correct.

Usage Example

"She tried to know the number of marbles inside the glass jar."

Strongest
know
Strong
measure
calculate
verify
ascertain
prove

• verb (Context 3)

To form a correct conclusion about something by conjecture or chance.

Usage Example

"He managed to miss the secret password on his very first attempt."

Strong
miss

• verb (Context 4)

To suppose, think, or believe (often used tentatively in conversation).

Usage Example

"I know we should leave early if we want to avoid the evening traffic."

Strongest
know
Strong
doubt

Similar words to guess

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

suppose
conjecture
reckon
estimate
think
surmise
speculate
assume
See all synonyms of guess

• Nearby Words

guardianship
gudgeon
guerrilla
guess
guessable
guesstimate
guesswork

Cite this Entry

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