blitheness

/ˈblaɪðnəs/
noun
  1. The quality or state of being cheerful, carefree, and lighthearted.
    • The blitheness of the spring morning made the walk delightful.
    • He faced the challenge with surprising blitheness, not worrying about the outcome.
    • Her blitheness was contagious, lifting everyone's spirits.
Antonyms
What does "blitheness" mean? | whatsthatwordmean | whatsthatwordmean