| dusky(adjective, quiet, faint, melodious, muted) |
| easy-going(adjective, calm, restrained, subdued, impassive) |
| easygoing(quiet, subdued, understated, unglamorous, unspectacular) |
| emptied |
| filed down(verb, phrasal verb) |
| hard-hearted(adjective, calm, restrained, subdued, impassive) |
| hardboiled(adjective, quiet, restrained, subdued, disciplined) |
| hazy(adjective, quiet, faint, melodious, muted) |
| impassive(adjective, calm, restrained, subdued, unresponsive) |
| impervious(adjective, calm, restrained, subdued, impassive) |
| indifferent(adjective, calm, restrained, subdued, impassive) |
| inobtrusive(quiet, gentle, restrained) |
| laid-back(adjective, calm, quiet, restrained, subdued) |
| laid back(expression, adjective, subdued, disciplined, unimpassioned) |
| lenient(adjective, quiet, faint, melodious, muted) |
| light(adjective, quiet, faint, melodious, muted) |
| loose(quiet, subdued, understated, unglamorous, unspectacular) |
| low-pitched(adjective, quiet, subdued, understated, unglamorous) |
| lukewarm(adjective, calm, restrained, subdued, impassive) |
| mellifluent |