Muzzy

muzzy
-adjective
1 unable to think clearly; confused : she was shivering and her head felt muzzy from sleep.
• not clearly-thought-out; vague : society's muzzy notion of tolerance.
2 (of a person's eyes or a visual image) blurred : a slightly muzzy picture.
• (of a sound) indistinct : the bass and drums are, even on CD, appallingly muzzy.

[ORIGIN early 18th cent.: of unknown origin.]