D defs.my
Entry 1 sense Webster, 1913

Unwisdom

· Un·wis·dom · IPA /ˌʌnˈwɪzdəm/
01 n. Want of wisdom; unwise conduct or action; folly; simplicity; ignorance.
  1. 1.
    Want of wisdom; unwise conduct or action; folly; simplicity; ignorance.
    “Sumptuary laws are among the exploded fallacies which we have outgrown, and we smile at the unwisdom which could except to regulate private habits and manners by statute.” — J. A. Froude.