In this passage from Grendel , the character Grendel is characterized as troubled.

Explanation:

• Grendel experiences a "wordless, obscurely murderous unrest," which suggests inner turmoil and agitation.
• The passage describes the dominance of man and the fear animals have of humans, while Grendel himself feels a disturbing, restless emotion.
• This unrest is not explicitly fear or sickness, nor is it peaceful; it is a troubled, uneasy feeling.

So, the best characterization here is troubled.