LIGHTSOMENESSES
Scrabble letter values: L1I1G2H4T1S1O1M3E1N1E1S1S1E1S1 = 21
Definition
LIGHTSOMENESSES is the plural of LIGHTSOMENESS.
noun LIGHTSOMENESS: the cheerful feeling you have when nothing is troubling you.
Synonyms of LIGHTSOMENESS: carefreeness, insouciance, lightheartedness