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.

Definitions of muddy

adj (of soil) soft and watery

muddy barnyard”
boggy, marshy, miry, mucky, quaggy, sloppy, sloughy, soggy, squashy, swampy, waterlogged
covered or soaked with a liquid such as water

adj dirty and messy; covered with mud or muck

muddy boots”
dirty, soiled, unclean
soiled or likely to soil with dirt or grime

adj (of liquids) clouded as with sediment

muddy coffee”
cloudy, mirky, murky, turbid
not transmitting or reflecting light or radiant energy; impenetrable to sight

adj (of color) discolored by impurities; not bright and clear

muddy colors”
dingy, dirty, muddied
combined with extraneous elements

v dirty with mud

muddy up
Type of:
begrime, bemire, colly, dirty, grime, soil
make soiled, filthy, or dirty

v cause to become muddy

“These data would have muddied the prediction”
Type of:
blur, confuse, obnubilate, obscure
make unclear, indistinct, or blurred

v make turbid

muddy the water”
Type of:
alter, change, modify
cause to change; make different; cause a transformation

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