| solemn(adjective, calm, dull, quiet, cool) |
| somber(adjective, calm, dull, quiet, cool) |
| staid(adjective, dull, quiet, set, cool) |
| steady(calm, cool, temperate, sober, serious) |
| took the pledge(expression, idiom, moderate, dry, temperate) |
| calm(cool, temperate, sober, serious, sedate) |
| clear-headed(moderate, dry, temperate, sober, disciplined) |
| collected(calm, cool, sober, serious, sedate) |
| composed(calm, cool, sober, serious, sedate) |
| continent(moderate, dry, temperate, abstemious, clear-headed) |
| controlled(moderate, dry, temperate, abstemious, clear-headed) |
| cool(calm, sober, serious, sedate, dignified) |
| cool as cucumber(expression, idiom, calm, quiet, cool) |
| deadpan(adjective, dull, quiet, heavy) |
| decorous(adjective, calm, quiet, cool, sober) |
| demure(adjective, calm, quiet, cool, sober) |
| dispassionate(calm, cool, dignified) |
| imperturbable(calm, cool, dignified) |
| laid-back(calm, cool, dignified) |
| laid back(expression, somber, decorous) |