filthy
adj. B2 Upper Intermediate US //ˈfɪɫθi// UK //fˈɪlθi// filthy
adj. extremely dirty or unpleasant. You can use it to describe a messy room, a person who needs a shower, or even a rude joke.
adj. extremely or disgustingly dirty; foul. Also used to describe content that is obscene or morally corrupt.
Wash your hands because they are absolutely filthy.
The hikers returned from the trail with filthy boots and mud-splattered clothes after the heavy rain.
Despite the grand architecture of the city center, the narrow back alleys remained filthy and neglected, filled with the refuse of a thousand daily lives.
From Middle English filthy, filthi, equivalent to filth + -y.
Usage
Often used as an intensifier in the phrase 'filthy rich' to describe extreme wealth.