険峻

1. Origins, structure, and basic meaning

• Structure: 険峻(けんしゅん) describes mountains or terrain as steep and rugged.
• Basic usage: It is a written-style word for mountain paths requiring care or ranges of rugged mountains.

2. Common pitfalls and similar expressions

• Steepness and ruggedness rather than height
  • 険峻な山 means a steep, rugged mountain. While 高い山 focuses on height, this expression emphasizes the difficult terrain.