| remote(adjective, cool, detached, unfriendly, blank) |
| restrained(adjective, calm, quiet, reasonable, moderate) |
| self-absorbed |
| sensible(adjective, reasonable, moderate, mild, agreeable) |
| serious(adjective, calm, tough, dark, restrained) |
| severe(adjective, calm, quiet, reasonable, sensible) |
| simple |
| soft(adjective, calm, quiet, reasonable, moderate) |
| solemn(adjective, calm, quiet, reasonable, sensible) |
| somber(adjective, calm, quiet, reasonable, sensible) |
| soulless |
| sound(adjective, calm, quiet, reasonable, sensible) |
| stable(adjective, pleasant, reasonable, moderate, mild) |
| staid(adjective, calm, quiet, reasonable, sensible) |
| steady(adjective, calm, quiet, reasonable, moderate) |
| steely |
| stoic(adjective, tough, rational, straightforward, sober) |
| stolid(adjective, tough, rational, straightforward, sober) |
| stony-eyed(adjective, cool, detached, blank, sober) |
| subdued(adjective, calm, quiet, reasonable, sensible) |