| obvious(clear, sharp, plain, certain, definite) |
| palpable(clear, sharp, definite, obvious, evident) |
| perceptible(clear, sharp, plain, distinct, obvious) |
| perspicuous(simple, sharp, distinct, understandable, well-defined) |
| positive(plain, certain, definite, obvious, distinctive) |
| precise(simple, sharp, distinct, understandable, well-defined) |
| pronounced(sharp, certain, definite, distinct, obvious) |
| pure(adjective, simple, clean, plain, modest) |
| pure and simple(expression, adjective, idiom, clean, plain) |
| readable(simple, sharp, distinct, understandable, well-defined) |
| real(sound, certain, true, definite, evident) |
| recognizable(simple, sharp, distinct, understandable, well-defined) |
| rustic(adjective, simple, clean, plain, pure) |
| sheer(adjective, simple, clean, plain, pure) |
| simple(adjective, clear, sharp, plain, natural) |
| single(adjective, simple, clean, plain, pure) |
| sound(adjective, certain, true, definite, obvious) |
| spartan(adjective, simple, clean, plain, pure) |
| spelled out(expression, simple, sharp, distinct, understandable) |
| straight out(expression, adjective, plain, straightforward, definite) |