恶劣 (è liè) is an adjective meaning 'atrocious,' 'vile,' or 'dreadful,' describing conditions, behavior, or situations that are extremely bad, harmful, or morally repugnant. The first character 恶 (è) means 'evil' or 'wicked,' while the second character 劣 (liè) means 'inferior' or 'poor quality.' Together, they intensify each other to convey a strong sense of severity—far beyond merely 'bad' or 'unpleasant.' It’s commonly used for harsh weather, deplorable living conditions, abusive conduct, or corrupt systems.

This word carries a formal and often critical tone; it appears frequently in news reports, official statements, and written critiques—not in casual speech. It rarely modifies people directly (e.g., you wouldn’t say 'he is 恶劣'), but rather describes their actions, attitudes, or environments (e.g., '恶劣的态度' — 'a vile attitude'). Because of its gravity, overusing 恶劣 can sound overly dramatic or accusatory in everyday conversation.