| lazy(adjective, easy, relaxed, casual, tired) |
| light(adjective, quiet, faint, melodious, muted) |
| mellow(adjective, calm, quiet, smooth, friendly) |
| mollifying(adjective, comforting) |
| noiseless(adjective, calm, quiet, smooth, tranquil) |
| patient(adjective, calm, quiet, cool, moderate) |
| peacetime |
| placatory(calm, quiet, friendly, serene) |
| pleasing(adjective, calm, quiet, easy, relaxed) |
| reassuring(adjective, soothing, comforting) |
| refreshing(adjective, agreeable, satisfying, soothing, favorable) |
| reposing(adjective, quiet, cool, smooth, mild) |
| restoring(adjective, agreeable, satisfying, soothing, favorable) |
| secluded(adjective, shy, stable, peaceful, tranquil) |
| sequestered(adjective, shy, stable, peaceful, tranquil) |
| simple |
| sleep-inducing |
| somnolent |
| soundless(adjective, calm, quiet, smooth, tranquil) |
| still as death(expression, idiom, quiescence) |