| civilised |
| civilized(kind, gentle, polite, considerate, courteous) |
| clement(adjective, calm, kind, smooth, soft) |
| collected(mild, relaxed, tolerant, laid-back, permissive) |
| companionate |
| compassionate(adjective, calm, understanding, kind, soft) |
| compliable |
| composed(mild, relaxed, tolerant, laid-back, permissive) |
| condoning(soft, sympathetic, tolerant, easygoing, compliant) |
| congruous(pleasant, friendly, agreeable, cordial, gracious) |
| consistent(pleasant, friendly, agreeable, cordial, gracious) |
| consonant(pleasant, friendly, agreeable, cordial, gracious) |
| content |
| conversable(pleasant, friendly, agreeable, cordial, gracious) |
| convivial(kind, pleasant, gentle, friendly, agreeable) |
| cool(adjective, calm, understanding, kind, pleasant) |
| copacetic(adjective, kind, pleasant, gentle, friendly) |
| courtly(easy, mild, polite, gracious, considerate) |
| curtsying(adjective, servile) |
| debonair(adjective, polite, considerate, well-mannered) |