Gothic novels, horror movies, and crime dramas don't shy away from showing gruesome scenes of death, pictures that inspire fright and repulsion. Synonyms include "ghastly," "grisly," "loathsome," and "macabre."
Once upon a time, English contained a variety of words related to gruesome. The verb grue meant "to shudder," just as its Middle Dutch source gruwen did. Grueful and grueing also conveyed the sense of shivering with horror and disgust. All of these variations have been lost leaving us only with gruesome. Texting while driving has caused many gruesome accidents that you might not want to hear the gruesome details of. Although if you like gruesome movies, you might want to know.