醜悪

1. Origins, structure, and basic meaning

• Structure: 醜悪 is read as しゅうあく and functions as a noun or na-adjective for something hideous in appearance or morally vile in conduct or character.
• Basic usage: A morally ugly act appears in 醜悪な行為, while the hideousness of a mask appears in 仮面の醜悪さ.

2. Common pitfalls and similar expressions

• Appearance and moral judgment
  • It can describe a visually hideous form or a morally repulsive action such as betrayal.
• Difference from 醜い
  • 醜い broadly means ugly or unsightly, while 醜悪 is a stronger, more literary evaluation of extreme ugliness or vileness.