| unboastful |
| uncluttered(adjective, simple, clean, plain, pure) |
| uncombined(adjective, simple, clean, plain, pure) |
| uncomplaining(adjective, soft, shy, meek, frugal) |
| uncomplex(adjective, simple, honest, plain, modest) |
| uncomplicated |
| uncompounded(adjective, simple, clean, plain, pure) |
| undistinguished |
| unelaborate(adjective, simple, clean, plain, pure) |
| unembroidered(adjective, simple, reasonable, plain, restrained) |
| unemotional |
| unemphatic(quiet, plain, imperceptible, discreet, inconspicuous) |
| unexcessive(adjective, simple, reasonable, plain, restrained) |
| unextravagant(adjective, simple, reasonable, plain, restrained) |
| unextreme(adjective, simple, reasonable, plain, restrained) |
| unflashy(adjective, person, feelings) |
| unfussy(adjective, simple, clean, plain, pure) |
| unimposing(adjective, simple, honest, plain, modest) |
| unmitigated(adjective, simple, clean, plain, pure) |
| unmixed(adjective, simple, clean, plain, pure) |