| frugal(adjective, characteristic, quality, sensible, wise) |
| intellectual(adjective, good, sound, smart, bright) |
| thoughtful(adjective, good, kind, sound, gentle) |
| enlightened(adjective, sound, moderate, bright, flexible) |
| hard-headed(adjective, sound) |
| imaginable(adjective, fair, acceptable, realistic, expected) |
| impartial(adjective, calm, good, sound, right) |
| knowledgeable(adjective, smart, bright, sensible, rational) |
| legitimate(adjective, good, sound, correct, appropriate) |
| levelheaded(adjective, calm, good, quiet, hard) |
| liberal(adjective, good, kind, moderate, fair) |
| literate(adjective, rational, tolerant, educated, progressive) |
| probable(adjective, good, sound, appropriate, sensible) |
| sagacious(adjective, sound, reason, sensible, sober) |
| sapient(adjective, sound, reason, sensible, rational) |
| suitable(adjective, correct, fit, proper, possible) |
| thinking(adjective, sound, keen, smart, bright) |
| understanding(adjective, moderate, smart, bright, sensible) |
| unromantic(adjective, hard, sound, sensible, useful) |
| viable(adjective, sound, modest, rational, practical) |