A joyous family.
The definition of joyous is feelings of great happiness or delight.
An example of joyous feelings are the feelings you have after the birth of your long-awaited baby.
full of joy; happy; glad
Origin of joyousMiddle English from Old French joios from joie, joy
Feeling, showing, or causing joy; joyful. See Synonyms at glad1.
Old French joieus, from joie + -eus