| legit(clear, sound, reasonable, sensible, rational) |
| legitimate(clear, sound, reasonable, sensible, rational) |
| lucid(clear, sound, reasonable, sensible, healthy) |
| most likely(expression, clear, sound, reasonable, sensible) |
| necessary(clear, sound, reasonable, sensible, rational) |
| nonchalant(adjective, calm, relaxed, tranquil, easygoing) |
| not turn a hair(expression, adjective, idiom, calm, relaxed) |
| nuts and bolts(expression, adjective, idiom, reasonable, sensible) |
| obvious(clear, sound, reasonable, sensible, rational) |
| operative(adjective, reasonable, sensible, useful, sober) |
| orderly(adjective, reasonable, sensible, useful, sober) |
| perceiving(adjective, sound, sensible, rational, intelligent) |
| perspicuous(adjective, clear, sound, reasonable, sensible) |
| pertinent(clear, sound, reasonable, sensible, rational) |
| placid(adjective, calm, relaxed, tranquil, easygoing) |
| plausible(adjective, clear, sound, reasonable, sensible) |
| poised(adjective, calm, relaxed, tranquil, easygoing) |
| possessed(adjective, calm, relaxed, tranquil, easygoing) |
| possible(adjective, reasonable, sensible, useful, sober) |
| practicable(adjective, reasonable, sensible, useful, sober) |