| restrained(calm, reticent, controlled, unassuming, undemonstrative) |
| cool(calm, quiet, mild, controlled, self-possessed) |
| discreet(adjective, calm, quiet, reasonable, mild) |
| reserved(calm, reticent, controlled, unassuming, self-possessed) |
| reticent(calm, quiet, reasonable, mild, controlled) |
| retiring(calm, quiet, reasonable, mild, reticent) |
| shrinking(adjective, calm, quiet, reasonable, mild) |
| subdued(calm, quiet, reasonable, mild, controlled) |
| undemonstrative(calm, quiet, reasonable, mild, reticent) |
| withdrawn(calm, quiet, reasonable, mild, reticent) |
| aloof |
| backward |
| bashful |
| blank |
| bottled up(expression, adjective, calm, quiet, reasonable) |
| calm(quiet, mild, controlled, self-possessed) |
| calm and collected(expression, idiom, calm, quiet, reasonable) |
| chilled(adjective, calm, quiet, reasonable, mild) |
| chilly |
| cold |