| open and shut(expression, adjective, idiom, clean, plain) |
| ordinary(adjective, simple, reasonable, plain, restrained) |
| prosaic(adjective, simple, honest, modest, straightforward) |
| pure(adjective, simple, clean, plain, modest) |
| pure and simple(expression, adjective, idiom, clean, plain) |
| reasonable(adjective, simple, moderate, plain, restrained) |
| rustic(adjective, simple, clean, plain, pure) |
| sheer(adjective, simple, clean, plain, pure) |
| single(adjective, simple, clean, plain, pure) |
| small(adjective, simple, reasonable, moderate, plain) |
| spartan(adjective, simple, clean, plain, pure) |
| straightforward(adjective, simple, honest, modest, humble) |
| unadulterated(adjective, simple, clean, plain, pure) |
| unalloyed(adjective, simple, clean, plain, pure) |
| unambitious(adjective, simple, honest, plain, modest) |
| unassuming(adjective, simple, honest, plain, informal) |
| unbeautified(adjective, simple, honest, plain, modest) |
| unblended(adjective, simple, clean, plain, pure) |
| uncluttered(adjective, simple, clean, plain, pure) |
| uncombined(adjective, simple, clean, plain, pure) |