| depressed |
| dispirited(verb, adjective, dull, flat, low) |
| domestic(adjective, quiet, gentle, mild, restrained) |
| downcast(adjective, dull, quiet, gentle, flat) |
| dumb(adjective, quiet, soft, low) |
| flat(adjective, calm, dull, quiet, kind) |
| humiliated |
| insipid(adjective, calm, dull, kind, smooth) |
| light(adjective, calm, dull, quiet, weak) |
| low-keyed(adjective, sounds) |
| moderate(adjective, calm, dull, quiet, weak) |
| muddy(adjective, soft, obscure, flat, dark) |
| peaceable(adjective, calm, quiet, kind, smooth) |
| plain(adjective, calm, dull, quiet, simple) |
| pure(quiet, simple, delicate, restrained, innocent) |
| reticent(adjective, calm, quiet, soft, reasonable) |
| serious(adjective, calm, quiet, severe, gentle) |
| shadowy(adjective, dull, weak, soft, gentle) |
| solemn(adjective, calm, dull, quiet, reasonable) |
| somber(adjective, calm, dull, quiet, soft) |