| easy(adjective, quiet, clear, open, light) |
| express(verb, adjective, clear, simple, right) |
| guileless(adjective, open, direct, free, simple) |
| homey(adjective, quality, open, simple, easy) |
| indisputable(adjective, clear, simple, true, straightforward) |
| legible(adjective, clear, simple, easy, sharp) |
| observable(adjective, clear, see, substantial, obvious) |
| out-and-out(adjective, clear, complete, simple, flat) |
| outright(adjective, good, clear, open, direct) |
| perspicuous(adjective, clear, sharp, definite, distinct) |
| plane(noun, adjective, characteristic, calm, quiet) |
| routine(adjective, good, dull, clear, simple) |
| rustic(adjective, open, simple, easy, clean) |
| severe(adjective, calm, clear, simple, harsh) |
| smooth(adjective, characteristic, calm, clear, light) |
| unaffected(adjective, open, simple, tough, reasonable) |
| uncomplicated(adjective, clear, light, smooth, simple) |
| undiluted(adjective, strong, simple, clean, pure) |
| unmixed(adjective, strong, simple, clean, pure) |
| unqualified(adjective, clear, open, right, friendly) |