鋭利

1. Origins, structure, and basic meaning

• Structure: 鋭利 (えいり) combines sharpness 鋭 and cutting edge 利 to describe a keen-edged object.
• Basic usage: It applies to blades and broken glass capable of cutting or piercing.

2. Common pitfalls and similar expressions

• A functional cutting hazard
  • 鋭利な suggests an edge sharp enough to injure, not merely a visually pointed shape.