| balmy(adjective, calm, quiet, reasonable, moderate) |
| benevolent(adjective, kind, pleasant, friendly, cheerful) |
| bighearted(adjective, kind, pleasant, friendly, cheerful) |
| bovine |
| breezy(adjective, calm, kind, pleasant, friendly) |
| capable(adjective, calm, quiet, understanding, gentle) |
| carefree(adjective, mild, relaxed, tolerant, laid-back) |
| casual(adjective, mild, relaxed, tolerant, laid-back) |
| charitable(adjective, kind, pleasant, friendly, cheerful) |
| cold-blooded(adjective, unexcitable) |
| comforting(adjective, calm, quiet, easy, relaxed) |
| complaisant(adjective, calm, kind, pleasant, friendly) |
| compliant(adjective, kind, pleasant, friendly, cheerful) |
| constant(adjective, calm, smooth, reasonable, moderate) |
| cool as cucumber(expression, adjective, idiom, calm, reasonable) |
| coolheaded(adjective, calm, cool, sound, reasonable) |
| cordial(adjective, kind, pleasant, friendly, cheerful) |
| deadpan(adjective, unexcitable) |
| demure(adjective, unexcitable) |
| dependable(adjective, calm, sound, reasonable, sensible) |