泥沼

1. Origins, structure, and basic meaning

• Structure: 泥沼 is read どろぬま and means a muddy bog or a difficult situation that is hard to escape.
• Basic usage: It describes a rain-damaged road or a discussion trapped in mutual accusations.

2. Common pitfalls and similar expressions

• Recognizing figurative use
  • 泥沼のようになった道 compares the condition of a road to a muddy bog.
  • 議論が泥沼に陥る means that a discussion falls into an intractable situation, not actual mud.