| clamming up(verb, expression, adjective, quiet, reserved) |
| close(verb, adjective, quiet, terminate, conclude) |
| close-lipped(adjective, quiet, reserved, secret, private) |
| closemouthed(adjective, quiet, reserved, secret, private) |
| hidden(adjective, quiet, reserved, secret, private) |
| hush-hush(adjective, quiet, reserved, secret, private) |
| retired(adjective, quiet, reserved, secret, private) |
| secluded(adjective, quiet, reserved, secret, private) |
| secretive(adjective, quiet, reserved, secret, private) |
| silent(adjective, quiet, reserved, secret, private) |
| tight-lipped(adjective, quiet, reserved, secret, private) |
| tight chops(expression, adjective, quiet, reserved, secret) |
| uncommunicative(adjective, quiet, reserved, secret, private) |
| unforthcoming(adjective, quiet, reserved, secret, private) |
| bag it(verb, expression, close, terminate, conclude) |
| be silent |
| bring down curtain(verb, expression, idiom, close, terminate) |
| bring to a close(verb, expression, idiom, close, terminate) |
| bring to an end(verb, expression, idiom, close, terminate) |
| bring to end(verb, expression, idiom, close, terminate) |