| low-key(adjective, quiet, cool, smooth, slow) |
| mild(adjective, quiet, cool, smooth, still) |
| oppressive |
| pacific(adjective, quiet, cool, smooth, mild) |
| pastoral(adjective, quiet, cool, smooth, mild) |
| placid(adjective, quiet, cool, smooth, mild) |
| quiescent(adjective, quiet, cool, smooth, slow) |
| reposeful(adjective, quiet, cool, smooth, slow) |
| reposing(adjective, quiet, cool, smooth, slow) |
| restful(adjective, quiet, cool, smooth, mild) |
| rural(adjective, quiet, cool, smooth, slow) |
| serene(adjective, quiet, cool, smooth, mild) |
| slow(adjective, quiet, cool, smooth, mild) |
| smooth(adjective, quiet, cool, mild, still) |
| soothing(adjective, quiet, cool, smooth, mild) |
| stifling |
| stormless(adjective, quiet, cool, smooth, slow) |
| stuffy |
| suffocating |
| tranquil(adjective, quiet, cool, smooth, slow) |