| concise |
| tongue-tied(adjective, calm, quiet, humble, silent) |
| withdrawn(adjective, quiet, gentle, thoughtful, reserved) |
| close-lipped(adjective, quiet, reserved, secret, private) |
| closemouthed(adjective, close, quiet, restrained, still) |
| distant(adjective, close, quiet, gentle, unfriendly) |
| impassive(adjective, cool, blank, aloof, unemotional) |
| sententious(adjective, reserved, reticent, uncommunicative) |
| unforthcoming(adjective, close, quiet, restrained, reserved) |
| untalkative(adjective, quiet, lot, tightlipped) |
| dour(adjective, low, gloomy, depressed, reserved) |
| saturnine(adjective, low, gloomy, melancholy, miserable) |
| unresponsive(adjective, calm, quiet, humble, unfriendly) |
| cold(adjective, close, quiet, cool, unfriendly) |
| detached(adjective, quiet, thoughtful, unfriendly, aloof) |
| inarticulate(adjective, calm, quiet, humble, silent) |
| retiring(adjective, close, quiet, gentle, mild) |
| succinct |
| unemotional(adjective, cool, unfriendly, blank, aloof) |
| unexpressive(adjective, reserved, reticent, uncommunicative) |