however

/haʊˈevər/ adverb

Definition

however cold/difficult/slowly, etc › used to say that it does not make any difference how cold/difficult/slowly, etc something is or happens: We're not going to get there in time, however fast we drive.

COMPARING › used when you are about to say something which is surprising compared with what you have just said: He had always been a successful businessman. Recently, however, things have not been going well for him.

ASKING UK › used to ask about how something happened when the person asking feels surprised: However did you manage to persuade her?

(Definition of however adverb from the Cambridge Learner's Dictionary © Cambridge University Press)