MUDDIED
dirty, dingy, muddied, muddy
(adjective) (of color) discolored by impurities; not bright and clear; “dirty” is often used in combination; “a dirty (or dingy) white”; “the muddied grey of the sea”; “muddy colors”; “dirty-green walls”; “dirty-blonde hair”
MUDDY
muddy
(verb) make turbid; “muddy the water”
muddy
(verb) cause to become muddy; “These data would have muddied the prediction”
muddy, muddy up
(verb) dirty with mud
Source: WordNet® 3.1
Adjective
muddied (comparative more muddied, superlative most muddied)
Made dirty with mud.
Made unclear, obfuscated (generally as part of the phrase muddied the water)
Made muted of color.
Verb
muddied
simple past tense and past participle of muddy
Source: Wiktionary
MUDDY
Mud"dy, a. [Compar. Muddier; superl. Muddiest.]
1. Abounding in mud; besmeared or dashed with mud; as, a muddy road
or path; muddy boots.
2. Turbid with mud; as, muddy water.
3. Consisting of mud or earth; gross; impure.
This muddy vesture of decay. Shak.
4. Confused, as if turbid with mud; cloudy in mind; dull; stupid;
also, immethodical; incoherent; vague.
Cold hearts and muddy understandings. Burke.
Dost think I am so muddy, so unsettled. Shak.
5. Not clear or bright. Swift.
Mud"dy, v. t. [imp. & p. p. Muddied; p. pr. & vb. n. Muddying.]
1. To soil with mud; to dirty; to render turbid.
2. Fig.: To cloud; to make dull or heavy. Grew.
Source: Webster’s Unabridged Dictionary 1913 Edition