愚か

1. Origins, structure, and basic meaning

• Structure: 愚か is read as おろか and means foolish or unwise in judgment or behavior.
• Basic usage: It can evaluate repeatedly hiding a mistake or describe later recognizing one's own foolish thinking.

2. Common pitfalls and similar expressions

• Evaluating an action
  • 愚かな行為 means an action judged to be unwise or foolish. Example: 同じ失敗を何度も隠すのは愚かな行為です。
• Recognizing one's past judgment
  • 愚かさに気づく means realizing afterward that one's thinking had been foolish. Example: 自分だけが正しいと考えた愚かさに後で気づきました。