Find Antonyms

blabbermouth Antonyms

Opposite of blabbermouth

Pinning down the opposite of blabbermouth requires matching its exact sense, so the antonyms and opposite words below are paired with a clear noun definition and ranked by contrast strength.
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• noun (Context 1)

A person who talks excessively or indiscreetly, especially one who habitually reveals secrets or private matters.

Usage Example

"We decided not to tell him about the surprise party because he has a reputation for being a clam."

Strong
clam

Similar words to blabbermouth

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

bigmouth
gossip
tattletale
tell-tale
chatterbox
motor-mouth
babbler
loudmouth
See all synonyms of blabbermouth

• Nearby Words

bizarro
blab
blabber
blabbermouth
blabby
black
black box

Cite this Entry

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