我迷路了。

Just drop this phrase as soon as you realize the map isn't matching the street. It is a complete sentence on its own. You can say it to a passerby or into your phone. If you want to be more specific, you can add where you are. For example, 我在商场里迷路了 means you're lost in the mall. We've all been there after three rounds of bubble tea.

Use it when you are wandering around a new city. It is perfect for calling a friend when you can't find the restaurant. You can also use it during a confusing lecture or meeting. It signals that you've lost the thread of the conversation. It’s a very honest and humble way to ask for help.

Don't use this if you just forgot a word. That’s a different kind of 'lost.' Also, avoid using it in very high-stakes formal presentations. In those cases, say you need 'clarification' instead. It might sound a bit too helpless if you're leading the meeting. Don't use it if you're 'lost in thought'—that's a different expression entirely!

Chinese cities can be like massive, beautiful mazes. Especially in places like Chongqing, even locals get lost! Asking for directions is a common social interaction in China. People are generally very helpful to those who admit they are lost. It shows you trust them to guide you. It’s a great 'icebreaker' for practicing your Chinese with real people.

If you want to sound more casual, just say 迷路了. If you are completely, hopelessly lost, add 彻底 (chè dǐ). 我彻底迷路了 means 'I am totally lost.' If you want to ask if someone else is lost, say 你迷路了吗?. It’s a kind way to offer help to a confused-looking tourist.