| operative(adjective, reasonable, sensible, useful, sober) |
| orderly(adjective, reasonable, sensible, useful, sober) |
| organized(adjective, regular, serious, practical, competent) |
| passable(adjective, simple, ordinary, familiar, natural) |
| plain-vanilla |
| plastic(adjective, mean, simple, plain, common) |
| plodding |
| possible(adjective, reasonable, sensible, useful, sober) |
| practicable(adjective, simple, clean, plain, ordinary) |
| practiced(adjective, regular, serious, practical, competent) |
| pragmatic(adjective, reasonable, useful, realistic, applied) |
| prevailing(adjective, simple, common, ordinary, natural) |
| probable(adjective, simple, ordinary, familiar, natural) |
| prose(adjective, simple, flat, clean, plain) |
| proser |
| proverbial(adjective, common, usual, intimate, customary) |
| pure and simple(expression, idiom) |
| purposeful(adjective, regular, serious, practical, competent) |
| rational(adjective, reasonable, useful, realistic, applied) |
| reasonable(adjective, useful, realistic, applied, hands-on) |