crassness vs crassitude

crassness and crassitude both are nouns.

Word	Noun	Adjective	Verb	Adverb
crassness	Yes	No	No	No
crassitude	Yes	No	No	No

As nouns, crassness and crassitude are synonyms defined as:

crassness and crassitude: the quality of being crass--devoid of refinement

crassness (noun)	crassitude (noun)
the quality of being crass--devoid of refinement	the quality of being crass--devoid of refinement