Definition of 'foul'

Noun

1. an act that violates of the rules of a sport

Verb

1. hit a foul ball
2. make impure; "The industrial wastes polluted the lake"
      Synonyms: pollute contaminate
3. become or cause to become obstructed; "The leaves clog our drains in the Fall"; "The water pipe is backed up"
      Synonyms: clog choke off clog up back up congest choke
      Antonyms: unclog
4. commit a foul; break the rules
5. spot, stain, or pollute; "The townspeople defiled the river by emptying raw sewage into it"
      Synonyms: befoul defile maculate
6. make unclean; "foul the water"
7. become soiled and dirty

Adjective

1. highly offensive; arousing aversion or disgust; "a disgusting smell"; "distasteful language"; "a loathsome disease"; "the idea of eating meat is repellent to me"; "revolting food"; "a wicked stench"
      Synonyms: disgusting disgustful distasteful loathly loathsome repellent repellant repelling revolting skanky wicked yucky
2. offensively malodorous; "a foul odor"; "the kitchen smelled really funky"
      Synonyms: fetid foetid foul-smelling funky noisome smelly stinking ill-scented
3. violating accepted standards or rules; "a dirty fighter"; "used foul means to gain power"; "a nasty unsporting serve"; "fined for unsportsmanlike behavior"
      Synonyms: cheating dirty unsporting unsportsmanlike
4. (of a baseball) not hit between the foul lines
      Antonyms: fair
5. (of a manuscript) defaced with changes; "foul (or dirty) copy"
      Synonyms: dirty marked-up
6. characterized by obscenity; "had a filthy mouth"; "foul language"; "smutty jokes"
      Synonyms: filthy nasty smutty
7. disgustingly dirty; filled or smeared with offensive matter; "as filthy as a pigsty"; "a foul pond"; "a nasty pigsty of a room"
      Synonyms: filthy nasty
8. especially of a ship's lines etc; "with its sails afoul"; "a foul anchor"
      Synonyms: afoul fouled

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