The Collaborative International Dictionary of English v.0.48:
Beauteous \Beau"te*ous\ (b[=u]"t[-e]*[u^]s), a. Full of beauty; beautiful; very handsome. [Mostly poetic] -- Beau"te*ous*ly, adv. -- Beau"te*ous*ness, n. [1913 Webster]WordNet (r) 3.0 (2006):
beauteousness n 1: the quality of being good looking and attractive [syn: comeliness, fairness, loveliness, beauteousness]