| abstemious(reasonable, restrained, self-controlled) |
| abstentious(reasonable, restrained, self-controlled) |
| abstinent(reasonable, restrained, self-controlled) |
| affable(adjective, kind, pleasant, friendly, cheerful) |
| all there(expression, calm, sound, reasonable, sensible) |
| amicable(calm, easy, relaxed, comfortable, contented) |
| checked(adjective, pleasant, reasonable, moderate, mild) |
| cheerful(adjective, kind, pleasant, friendly) |
| clear-headed |
| clement(adjective, pleasant, reasonable, moderate, mild) |
| cogitative |
| comfortable(calm, easy, relaxed, contented) |
| commonsensical(calm, sound, reasonable, sensible, restrained) |
| conservative(adjective, reasonable, moderate, mild, agreeable) |
| consistent(adjective, calm, smooth, steady, temperate) |
| contemplative |
| contented(calm, relaxed) |
| continent(reasonable, restrained, self-controlled) |
| cool as a cucumber(expression, idiom, mild, easygoing, docile) |
| curbed(adjective, pleasant, reasonable, moderate, mild) |