| flat(adjective, weak, smooth, gentle, plain) |
| genial(adjective, calm, weak, smooth, soft) |
| guiltless(adjective, simple, gentle, innocent, inoffensive) |
| harmless |
| ho-hum(adjective, calm, weak, smooth, soft) |
| hurtless(adjective, simple, gentle, innocent, inoffensive) |
| innocent(adjective, simple, gentle, inoffensive, innocuous) |
| innocuous(adjective, simple, gentle, innocent, inoffensive) |
| innoxious(adjective, simple, gentle, innocent, inoffensive) |
| inoffensive(adjective, simple, gentle, innocent, innocuous) |
| inoperative(adjective, simple, gentle, innocent, inoffensive) |
| lenient(adjective, weak, smooth, soft, gentle) |
| lenitive(adjective, calm, weak, smooth, soft) |
| light(adjective, calm, weak, smooth, pleasant) |
| lukewarm(adjective, calm, weak, smooth, soft) |
| manageable(adjective, simple, gentle, innocent, inoffensive) |
| medium(adjective, calm, weak, smooth, soft) |
| mellow(adjective, calm, weak, smooth, soft) |
| mild(adjective, weak, pleasant, plain, temperate) |
| moderate(adjective, calm, weak, smooth, soft) |