绝对 (jué duì) means 'absolute' or 'absolutely' and functions as both an adjective and an adverb. The character 绝 (jué) originally meant 'to cut off' or 'extreme', conveying finality or extremity; 对 (duì) means 'correct' or 'in accordance with'. Together, they express something that is completely beyond doubt, unconditional, or without exception — like an unshakable truth or an uncompromising stance.

This word frequently appears in formal speech, logical arguments, scientific statements, and strong emotional expressions — for example, when emphasizing certainty ('It's absolutely impossible') or moral conviction ('This is absolutely wrong'). It often modifies adjectives (e.g., 绝对正确), verbs (e.g., 绝对不能), or nouns (e.g., 绝对优势). While it conveys strength and definiteness, it’s rarely used in casual, hedging contexts — unlike the more flexible 很 or 真.