muddy

American Heritage® Dictionary of the English Language, Fourth Edition

1. adj. Full of or covered with mud.
2. adj. Not bright or pure: a muddy color.
3. adj. Not clear; cloudy, as with sediment: muddy coffee.
4. adj. Lacking luster; dull: a muddy complexion.
5. adj. Confused or vague: muddy thinking.
6. v. To make dirty or muddy.
7. v. To make dull or cloudy.
8. v. To make obscure or confused.

Century Dictionary and Cyclopedia

1. Abounding in, covered with, or containing mud; foul with mud; turbid, as water or other fluids; miry.
2. Consisting of mud or earth; hence, gross; impure; vile.
3. Not clear or pure in color: as, a muddy green; a muddy complexion.
4. Cloudy in mind; confused; dull; heavy; stupid.
5. Obscure; wanting in clearness or perspicuity: as, a muddy style of writing.
6. To soil with mud; dirty.
7. To cloud; make dull or heavy.

Wiktionary

1. adj. Covered with or full of mud or wet soil.
2. adj. With mud or other sediment brought into suspension, turbid.
3. adj. Not clear; mixed up or blurry.
4. adj. euphemistic Soiled with feces.
5. v. transitive To get mud on (something).
6. v. transitive To make a mess of, or create confusion with regard to.

GNU Webster's 1913

1. adj. Abounding in mud; besmeared or dashed with mud
2. adj. Turbid with mud.
3. adj. Consisting of mud or earth; gross; impure.
4. adj. Confused, as if turbid with mud; cloudy in mind; dull; stupid; also, immethodical; incoherent; vague.
5. adj. Not clear or bright.
6. v. To soil with mud; to dirty; to render turbid.
7. v. To cloud; to make dull or heavy; to confuse.

WordNet 3.0

1. adj. (of color) discolored by impurities; not bright and clear
2. adj. (of soil) soft and watery
3. v. make turbid
4. adj. dirty and messy; covered with mud or muck
5. adj. (of liquids) clouded as with sediment
6. v. dirty with mud
7. v. cause to become muddy