Synonyms of lightsomeness

1 Syllable
mirth, glee
3 Syllables
merriment, mirthfulness, joyfulness, cheerfulness, happiness, gleefulness, jollity, jolliness, merriness, blitheness, cheeriness
4 Syllables
lightheartedness, jocoseness, jocosity, carefreeness, joviality, jocundity
5 Syllables
blithesomeness