If you are baffled, you cannot understand or explain something at all — not a little unclear, but stuck. A puzzle, a joke, a person's behaviour, or a hard question can leave you baffled. It is the ordinary adjective from the verb baffle, and friends, teachers, and newspapers all use it. People often say completely baffled or what baffles me is…. A blank look often goes with it. Confused is a neighbour word, but baffled is stronger, as if your mind has hit a wall and cannot go on.

一頭霧水、完全搞不懂