is a specific kind of: good, goodness.

is a broader term that covers: advisability | reasonableness.

is the opposite of: unsoundness.

derivation: heady, judicious, wise | sound | reasoned, sound, well-grounded.

is a specific kind of: trait.

is a broader term that covers: judiciousness, sagaciousness, sagacity | initiation, knowledgeability, knowledgeableness | diplomacy, statecraft, statesmanship | discernment, discretion.

is the opposite of: folly, foolishness, unwiseness.

derivation: wise.