Find Antonyms

clam Antonyms

Opposite of clam

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

To abruptly refuse to speak or answer questions (usually followed by 'up').

Usage Example

"The witness clammed up as soon as the investigators asked about the missing documents."

Strongest
open up
blab
Strong
speak out
spill the beans
talk
confess
sing

Similar words to clam

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

clam up
dollar
buck
dummy up
smacker
greenback
bivalve
simoleon
See all synonyms of clam

• Nearby Words

claimant
clairvoyance
clairvoyant
clam
clamber
clammily
clamminess

Cite this Entry

Wordmom. (2026). Antonyms for Clam. In Wordmom Thesaurus. Retrieved Nov 10, 2026, from https://wordmom.com/antonyms/clam
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