Simple Definition of happily
: in a happy way or state
—used to say that something good or lucky has happened
: in a very willing way
Examples of happily
They have been happily married for 12 years.
They lived happily ever after.
We happily accept credit cards.
First Known Use of happily
Seen and Heard
What made you want to look up happily? Please tell us where you read or heard it (including the quote, if possible).