| apathetic(adjective, ironic, deadpan, understated, laconic) |
| arcane(adjective, ironic, deadpan, understated, laconic) |
| ashen(adjective, quiet, faint, melodious, muted) |
| attritional(relieved, unlit, subfusc) |
| average(adjective, reasonable, sensible, restrained, modest) |
| balanced(adjective, calm, soft, reasonable, gentle) |
| balmy(adjective, quiet, faint, melodious, muted) |
| basic |
| biting(adjective, ironic, deadpan, understated, laconic) |
| bromidic(adjective, ironic, deadpan, understated, laconic) |
| callous(adjective, calm, restrained, subdued, impassive) |
| camouflaged(quiet, plain, imperceptible, discreet, inconspicuous) |
| careful(adjective, calm, soft, reasonable, gentle) |
| caressing(adjective, quiet, faint, melodious, muted) |
| casual(adjective, calm, restrained, subdued, impassive) |
| caustic(adjective, ironic, deadpan, understated, laconic) |
| cautious(adjective, calm, soft, reasonable, gentle) |
| chastened(quiet, gentle, restrained) |
| civil(adjective, quiet, cool, still, peaceful) |
| cold fish(expression, adjective, calm, restrained, subdued) |