| low-key(adjective, calm, quiet, reasonable, gentle) |
| mellow(adjective, quiet, gentle, restrained, sober) |
| muted(adjective, quiet, gentle, restrained, sober) |
| quiet(adjective, calm, reasonable, gentle, dark) |
| soft(adjective, calm, quiet, reasonable, gentle) |
| subdued(adjective, calm, quiet, reasonable, gentle) |
| abnegating(adjective, calm, quiet, reasonable, sensible) |
| abstaining(adjective, calm, quiet, reasonable, sensible) |
| calm(adjective, sensible, restrained, alert, subdued) |
| clear-headed(adjective, calm, quiet, reasonable, sensible) |
| cold(adjective, calm, sensible, dark, restrained) |
| collected(adjective, calm, quiet, reasonable, sensible) |
| composed(adjective, calm, quiet, reasonable, sensible) |
| constrained(adjective, calm, quiet, reasonable, sensible) |
| cool(adjective, calm, quiet, sensible, restrained) |
| diluted |
| dim(adjective, quiet, gentle, restrained, sober) |
| disciplined(adjective, calm, quiet, reasonable, sensible) |
| down-to-earth(adjective, calm, sensible, dark, restrained) |
| drab(adjective, calm, quiet, reasonable, sensible) |