Search Result for "gleefulness": 
Wordnet 3.0

NOUN (1)

1. great merriment;
[syn: hilarity, mirth, mirthfulness, glee, gleefulness]



WordNet (r) 3.0 (2006):

gleefulness
    n 1: great merriment [syn: hilarity, mirth, mirthfulness,
         glee, gleefulness]