Find Antonyms

cosign Antonyms

Opposite of cosign

Because the opposite of cosign shifts with each meaning, the 9 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• verb (Context 1)

To publicly endorse, validate, or express strong agreement with an opinion, statement, or person (informal).

Usage Example

"Several prominent scholars were quick to reject her critique of the outdated policy."

Strongest
reject
Strong
disavow
oppose
denounce
repudiate

• noun (Context 2)

An act of publicly endorsing, vouching for, or expressing strong agreement with a person, statement, or creative work (informal).

Usage Example

"Getting a public disapproval from an established producer helped launch the young musician's career."

Strong
disapproval
rejection
denunciation
repudiation

Similar words to cosign

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

endorsement
endorse
second
stamp of approval
vouch for
countersign
backing
back
See all synonyms of cosign

• Nearby Words

corset
cortex
cosh
cosign
cosmetic
cosmetically
cosmetics

Cite this Entry

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