| modest(simple, plain, indifferent, ordinary, humble) |
| monotone(adjective, dull, boring, routine, tedious) |
| natural(usual, obvious, conventional, typical, everyday) |
| nondescript |
| nothing(adjective, dull, simple, clean, plain) |
| nowhere(adjective, dull, simple, clean, plain) |
| passable |
| plain(adjective, dull, quiet, simple, soft) |
| plain-vanilla |
| planate(adjective, quiet, soft, gentle, flat) |
| plane(adjective, quiet, soft, gentle, flat) |
| platitudinous(adjective, simple, clean, plain, ordinary) |
| plebeian(adjective, simple, clean, plain, common) |
| plodding(adjective, dull, boring, routine, tedious) |
| polished(adjective, quiet, soft, gentle, flat) |
| practicable(adjective, simple, clean, plain, ordinary) |
| practical(adjective, simple, clean, plain, ordinary) |
| prevalent(usual, obvious, conventional, typical, everyday) |
| prolix |
| prolonged(dull, late, behind) |