挺好 (tǐng hǎo) is an informal, positive expression meaning 'pretty good' or 'quite nice.' It combines the adverb 挺 (tǐng), which means 'quite' or 'rather,' and the adjective 好 (hǎo), meaning 'good.' Together, they form a softened, modestly enthusiastic evaluation — stronger than just 好 but less emphatic than 太好了 or 非常好. It’s commonly used in everyday speech to express satisfaction, approval, or mild praise without sounding overly excited or formal.

This phrase often appears in responses to questions about well-being, experiences, or opinions — for example, when someone asks how your day was or what you thought of a meal. It carries a relaxed, friendly tone and is frequently heard in conversations among friends, family, or colleagues. Because it’s colloquial, it’s rarely used in formal writing or official contexts, and it’s almost always sentence-final or follows a noun or verb phrase.