/ ˈɒbviəsli; NAmE ˈɑːb-/ adverb
1.
used when giving information that you expect other people to know already or agree with
SYN clearly :
Obviously, we don't want to spend too much money.
Diet and exercise are obviously important.
2.
used to say that a particular situation or fact is easy to see or understand :
He was obviously drunk.
They're obviously not coming.
'I didn't realise it was a formal occasion.' 'Obviously!' (= I can see by the way you are dressed)