副词

1. 幸运地;幸运的是
You can add happily to a statement to indicate that you are glad that something happened or is true.

1. in an unexpectedly lucky way

e.g. happily he was not injured

2. in a joyous manner

e.g. they shouted happily

Synonym: merrilymirthfullygaylyblithelyjubilantly