'Blissful' definitions:

Definition of 'blissful'

From: WordNet
adjective
Completely happy and contented; "blissful young lovers"; "in blissful ignorance"

Definition of 'Blissful'

From: GCIDE
  • Blissful \Bliss"ful\, a. Full of, characterized by, or causing, joy and felicity; happy in the highest degree. "Blissful solitude." --Milton. -- {Bliss"ful*ly}, adv. -- {Bliss"ful*ness}, n. [1913 Webster]