The Collaborative International Dictionary of English v.0.48:
Graciousness \Gra"cious*ness\, n. Quality of being gracious. [1913 Webster]WordNet (r) 3.0 (2006):
graciousness n 1: excellence of manners or social conduct [ant: ungraciousness] 2: the quality of being kind and gentle [syn: benignity, benignancy, graciousness] [ant: malignance, malignancy, malignity]