| able(adjective, characteristic, cleverness, smartness) |
| abstract(adjective, characteristic, mystery, abstraction) |
| abstruse(adjective, characteristic, mystery, abstraction) |
| adept(adjective, characteristic, cleverness, smartness) |
| adroit(adjective, characteristic, cleverness, smartness) |
| apt(adjective, characteristic, cleverness, smartness) |
| arcane(adjective, characteristic, mystery, abstraction) |
| brainy(adjective, characteristic, cleverness, smartness) |
| cagey(adjective, characteristic, cleverness, smartness) |
| canny(adjective, characteristic, cleverness, smartness) |
| capable(adjective, characteristic, cleverness, smartness) |
| clear-sighted(adjective, characteristic, wisdom, acuteness) |
| competent(adjective, characteristic, cleverness, smartness) |
| complex(adjective, characteristic, mystery, abstraction) |
| concealed(adjective, characteristic, mystery, abstraction) |
| crackerjack(adjective, characteristic, cleverness, smartness) |
| critical(adjective, characteristic, wisdom, acuteness) |
| cunning(adjective, characteristic, cleverness, smartness) |
| dexterous(adjective, characteristic, cleverness, smartness) |
| dextrous(adjective, characteristic, cleverness, smartness) |