Gross; thick; dense; coarse; not elaborated or refined.
“Crass and fumid exhalations.”
Sir. T. Browne.
“Crass ignorance”
Cudworth.
Webster 1828 Edition
Crass
CRASS
,
Adj.
[L., the same as gross, which see.] Gross; thick; coarse; not thing, nor fine; applied to fluids and solids; as, crass and fumid exhalations. [Little used.]