荒い

1. Origins, structure, and basic meaning

• Structure: 荒い, read あらい, describes rough or violent movement or temperament.
• Basic usage: It is used to describe rough waves or a fierce temper.
  • 波が荒い日は船を出さないほうがいい。

2. Common pitfalls and similar expressions

• The identically read 粗い
  • 荒い focuses on roughness in waves or temperament, while 粗い focuses on coarse particles or a texture that is not fine.