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Synonyms

muddy

American  
[muhd-ee] / ˈmʌd i /

adjective

muddier, muddiest
  1. abounding in or covered with mud.

  2. not clear or pure.

    muddy colors.

  3. cloudy with sediment.

    muddy coffee.

  4. dull, as the complexion.

  5. not clear mentally.

  6. obscure or vague, as thought, expression, or literary style.

  7. Horse Racing. denoting the condition of a track after a heavy, continuous rainfall has ceased and been completely absorbed into the surface, leaving it the consistency of thick mud.


verb (used with object)

muddied, muddying
  1. to make muddy; soil with mud.

  2. to make turbid.

  3. to cause to be confused or obscure.

verb (used without object)

muddied, muddying
  1. to become muddy.

muddy British  
/ ˈmʌdɪ /

adjective

  1. covered or filled with mud

  2. not clear or bright

    muddy colours

  3. cloudy

    a muddy liquid

  4. (esp of thoughts) confused or vague

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to become or cause to become muddy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of muddy

First recorded in 1375–1425, muddy is from the late Middle English word muddi. See mud, -y 1

Explanation

Muddy is a verb that means to make dirty with mud. You might muddy up your mom's white shag rug if you don't take off your dirty hiking boots before you walk inside. The meaning of muddy is easy to remember: just look at the root word mud and think about smearing it on something. Muddy is also an adjective that describes something that's dirty and messy. When you're a child, you often end up looking muddy after playing outside, because you've been splashing in puddles and playing in the leaves. Muddy can also describe soil that's waterlogged, like your vegetable garden after a big rainstorm.

Keep Reading on Vocabulary.com

Vocabulary lists containing muddy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The answer isn’t straightforward, said Peter Meyer, principal economist with Muddy Boots Ag.

From The Wall Street Journal • Apr. 16, 2026

SoFi stock has fallen 40% this year as of Wednesday’s close of trading, weighed down by a brutal market for fintech and allegations of accounting mishandling by the short seller Muddy Waters Research.

From Barron's • Apr. 2, 2026

Block is well-known as the founder and chief executive officer of Muddy Waters Capital, a hedge fund and investment research firm, with a string of successful bearish bets to his name.

From MarketWatch • Apr. 1, 2026

Muddy pitches, febrile home crowds and the Premier League's biggest stars taken far beyond their comfort zones.

From BBC • Mar. 9, 2026

They crossed Fishmonger's Square and rode along Muddy Way before turning onto the narrow, curving Hook to begin their climb up Aegon's High Hill.

From "A Clash of Kings" by George R.R. Martin