The Collaborative International Dictionary of English v.0.48:
Broadness \Broad"ness\, n. [AS. br[=a]dnes.] The condition or quality of being broad; breadth; coarseness; grossness. [1913 Webster]WordNet (r) 3.0 (2006):
broadness n 1: the property of being wide; having great width [syn: wideness, broadness] [ant: narrowness]