| no bother(expression, clear, smooth, simple, straightforward) |
| no trouble(expression, clear, smooth, simple, straightforward) |
| not burdensome(expression, clear, smooth, simple, straightforward) |
| obvious(clear, light, smooth, simple, straightforward) |
| occasional |
| orderly |
| perfunctory |
| piece of cake(expression, adjective, idiom, clear, light) |
| planate(adjective, quiet, soft, gentle, flat) |
| plane(adjective, quiet, soft, gentle, flat) |
| pleasant(adjective, calm, quiet, light, smooth) |
| prompt(easy, articulate, confident, handy, adroit) |
| prosperous(adjective, calm, quiet, light, smooth) |
| pushover |
| quick(light, easy, confident, handy, adroit) |
| quiet(adjective, calm, clear, light, smooth) |
| regular(adjective, quiet, soft, gentle, flat) |
| relaxed(adjective, calm, quiet, light, cool) |
| rhythmic(adjective, quiet, soft, gentle, flat) |
| rippleless(adjective, quiet, soft, gentle, flat) |