The Collaborative International Dictionary of English v.0.48:
Crassitude \Cras"si*tude\ (-t?d), n. [L. crassitudo.] Grossness; coarseness; thickness; density. --Bacon. [1913 Webster]WordNet (r) 3.0 (2006):
crassitude n 1: the quality of being crass--devoid of refinement [syn: crassness, crassitude]