Example : The ground was boggy under foot.
A marshy coastline.
Miry roads.
Wet mucky lowland.
Muddy barnyard.
Quaggy terrain.
The sloughy edge of the pond.
Swampy bayous.

Synonyms : boggy, marshy, miry, mucky, quaggy, sloppy, sloughy, soggy, squashy, swampy, waterlogged

Example : Muddy boots.
A mucky stable.

Synonyms : mucky

Example : Dirty.
A dirty (or dingy) white.
The muddied grey of the sea.
Muddy colors.
Dirty-green walls.
Dirty-blonde hair.

Synonyms : dingy, dirty, muddied

Example : A cloudy liquid.
Muddy coffee.
Murky waters.

Synonyms : cloudy, mirky, murky, turbid

Synonyms : muddy up

Example : These data would have muddied the prediction.

Example : Muddy the water.