clamlike
/ˈklæmˌlaɪk/
adjective
- Resembling or characteristic of a clam, especially in being closed, secretive, or uncommunicative.
- His clamlike demeanor made it hard for the interviewer to get any details.
- The old house had a clamlike silence, with all the windows shuttered tight.
- After the argument, she became clamlike and refused to speak.
Antonyms