filthy
1. [ adjective ] disgustingly dirty; filled or smeared with offensive matter
Synonyms: nasty foul
Examples:

"as filthy as a pigsty" "a foul pond" "a nasty pigsty of a room"

Related terms: dirty
2. [ adjective ] vile; despicable
Synonyms: dirty lousy
Examples:

"a dirty (or lousy) trick" "a filthy traitor"

Related terms: nasty
3. [ adjective ] (informal) thoroughly unpleasant
Synonyms: vile nasty foul
Examples:

"filthy (or foul or nasty or vile) weather we're having"

Related terms: colloquialism inclement
4. [ adjective ] (sexuality) characterized by obscenity
Synonyms: nasty smutty foul
Examples:

"had a filthy mouth" "foul language" "smutty jokes"

Related terms: dirty
Similar spelling:   filth
  fillet
  filet
  field
  fill_out
  filled