Harsh; unrelenting.
Disagreeably precise or penetrating.
Savagely violent, vicious, ruthless, or cruel.
Crude or unfeeling in manner or speech.
Direct and without attempt to disguise unpleasantness.
In extreme metal, to describe the speed of the music and the density of riffs.
Difficult to accept; unpalatable.
Difficult or impossible to digest.
Anything that is difficult to digest.