‘流连忘返’ is a four-character idiom describing a state of being so deeply captivated—by a place, experience, or scene—that one loses track of time and forgets to leave. Literally, ‘流’ (liú) means ‘to linger’, ‘连’ (lián) suggests ‘continuously’ or ‘uninterruptedly’, ‘忘’ (wàng) means ‘to forget’, and ‘返’ (fǎn) means ‘to return’. Together, they evoke the image of someone lingering endlessly, entranced, to the point of forgetting their original intention to go back.

This idiom is often used to praise scenic spots, cultural attractions, or immersive experiences like art exhibitions or performances. It carries a positive, literary tone and appears frequently in travel writing, descriptive essays, and formal speech—but rarely in casual daily conversation. While it functions grammatically as an adjective or adverbial phrase, it typically modifies verbs like ‘徘徊’ (pace), ‘欣赏’ (appreciate), or ‘游览’ (tour), and often follows subject-predicate structure rather than appearing before nouns directly.