Available Definitions:
1) superl. - Abounding in mud; besmeared or dashed with mud; as, a muddy road or path; muddy boots.
2) superl. - Turbid with mud; as, muddy water.
3) superl. - Consisting of mud or earth; gross; impure.
4) superl. - Confused, as if turbid with mud; cloudy in mind; dull; stupid; also, immethodical; incoherent; vague.
5) superl. - Not clear or bright.
6) v. t. - To soil with mud; to dirty; to render turbid.
7) v. t. - Fig.: To cloud; to make dull or heavy.