Please don't touch food with dirty hands.
This room is filthy, so it needs cleaning.
indecent; obscene; immoral; dirty (story, money, etc.)
Used for morally or sexually impure things, such as obscene jokes, dirty money, or indecent behavior. Carries a strong negative judgment.
He always tells dirty jokes.
I can't accept dirty money.
This bathroom is very unsanitary.
He always tells dirty jokes to make people laugh.
You shouldn't touch food with dirty hands.
Leaving trash around makes the room unsanitary.