| perspicacious(adjective, understanding, sound, reasonable, keen) |
| thoughtful(adjective, good, sound, reasonable, sensible) |
| acceptable(adjective, sound, reasonable, honest, solid) |
| all there(expression, adjective, idiom, calm, good) |
| analytical(adjective, clear, sound, reasonable, reason) |
| brainy(adjective, understanding, reasonable, keen, sharp) |
| consequent(adjective, good, clear, sound, reasonable) |
| credible(adjective, sound, reasonable, sensible, solid) |
| discerning(adjective, clear, understanding, sound, reasonable) |
| informed(adjective, reasonable, sensible, stable, intelligent) |
| justifiable(adjective, clear, sound, reasonable, honest) |
| knowledgeable(adjective, smart, experience, know, capable) |
| levelheaded(adjective, calm, good, quiet, hard) |
| mental(adjective, mind, intelligent, thoughtful, intellect) |
| responsible(adjective, smart, bright, deliberate, mature) |
| sapient(adjective, sound, reason, sensible, proper) |
| stable(adjective, sound, reasonable, sensible, normal) |
| believable(adjective, sound, reasonable, honest, sensible) |
| clear-headed(adjective, calm, quiet, reasonable, sensible) |
| cogent(adjective, clear, sound, reasonable, sensible) |