crass /kɹæs/ adjective4 •Coarse; crude; unrefined or insensitive; lacking discrimination or taste. •Lacking finesse; crude and obvious.8. They require that crass stupidities shall not be played upon the reader as “the craft of the woodsman, the delicate art of the forest,” by either the author or the people in the tale. — 1895 •Materialistic. •Physically dense or thick. formscrasser · crassest