a. Full of joy; having or causing joy; very glad; as, a joyful heart. “Joyful tidings.” Shak. [ 1913 Webster ]
My soul shall be joyful in my God. Is. lxi. 10. [ 1913 Webster ]
Sad for their loss, but joyful of our life. Pope.
-- Joy"ful*ly, adv. -- Joy"ful*ness, n. [ 1913 Webster ]
n. the emotion of great happiness. Syn. -- joy, joyousness. [ WordNet 1.5 ]