鈍感

1. Origins, structure, and basic meaning

• Structure: 鈍感 is read as どんかん and means insensitive or unresponsive.
• Basic usage: It can describe insensitivity to changes in a social atmosphere or to cold weather.

2. Common pitfalls and similar expressions

• Insensitive to a changing atmosphere
  • 鈍感: He is a little insensitive to changes in the atmosphere around him. Example: 彼は周囲の雰囲気の変化に少し鈍感です。
• Insensitive to cold
  • 鈍感: My brother is insensitive to cold and wears a light jacket even in winter. Example: 弟は寒さに鈍感で、冬でも薄い上着を着ています。