The Collaborative International Dictionary of English v.0.48:
Loftiness \Loft"i*ness\, n. The state or quality of being lofty. [1913 Webster]WordNet (r) 3.0 (2006):
loftiness n 1: the quality of being high or lofty [syn: highness, loftiness] [ant: lowness] 2: impressiveness in scale or proportion [syn: stateliness, majesty, loftiness]