薄暗い

1. Origins, structure, and basic meaning

• Structure: 薄暗い is read as うすぐらい and means “dim” and “gloomy”.
• Basic usage: It describes walking through a dim corridor and a room remaining gloomy on a cloudy morning.

2. Common pitfalls and similar expressions

• 薄暗い廊下 / 部屋が薄暗かった
  • Use 薄暗い廊下 attributively and 部屋が薄暗かった predicatively. It means insufficiently lit, not completely dark.