'Joyful' definitions:

Definition of 'joyful'

From: WordNet
adjective
Full of or producing joy; "make a joyful noise"; "a joyful occasion" [ant: sorrowful]
adjective
Full of high-spirited delight; "a joyful heart" [syn: elated, gleeful, joyful, jubilant]

Definition of 'Joyful'

From: GCIDE
  • Joyful \Joy"ful\, 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]