Akademik

blitheness
noun
a feeling of spontaneous good spirits
-

his cheerfulness made everyone feel better

Syn: ↑cheerfulness
Ant: ↑cheerlessness (for: ↑cheerfulness)
Derivationally related forms: ↑cheerful, ↑cheerful (for: ↑cheerfulness)
Hypernyms: ↑happiness
Hyponyms: ↑buoyancy, ↑perkiness, ↑carefreeness, ↑insouciance, ↑lightheartedness, ↑lightsomeness

Useful english dictionary. 2012.