Synonym: bad, base, dirty, disgusting, evil, low, nasty, offensive, sinful, smelly, stinking, unfair, vicious, vile, wicked, wrong. Antonym: clean, fair. Similar words: by fair means or foul, soul, joule, would, could, should, four, fourth. Meaning: [faʊl] 
n. an act that violates of the rules of a sport. v. 1. hit a foul ball 2. make impure 3. become or cause to become obstructed 4. commit a foul; break the rules 5. spot, stain, or pollute 6. make unclean 7. become soiled and dirty. adj. 1. highly offensive; arousing aversion or disgust 2. offensively malodorous 3. violating accepted standards or rules 4. (of a baseball) not hit between the foul lines 5. (of a manuscript) defaced with changes 6. characterized by obscenity 7. disgustingly dirty; filled or smeared with offensive matter 8. especially of a ship's lines etc.
n. an act that violates of the rules of a sport. v. 1. hit a foul ball 2. make impure 3. become or cause to become obstructed 4. commit a foul; break the rules 5. spot, stain, or pollute 6. make unclean 7. become soiled and dirty. adj. 1. highly offensive; arousing aversion or disgust 2. offensively malodorous 3. violating accepted standards or rules 4. (of a baseball) not hit between the foul lines 5. (of a manuscript) defaced with changes 6. characterized by obscenity 7. disgustingly dirty; filled or smeared with offensive matter 8. especially of a ship's lines etc. 
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31. The play was full of filthy foul language.
32. The foul odor penetrated the entire house.
33. The referee signalled a foul.
34. Players were warned twice for foul play.
35. Murder is a foul deed.
36. That last foul lost us the match.
37. There's too much foul language on TV these days.
38. His boss has a foul temper.
39. I've had a foul morning; everything's gone wrong.
40. The foul smell of his body made me retch.
41. Detectives have not ruled out foul play .
42. She's determined to win(sentencedict.com), by fair means or foul.
43. He was sent off for foul play.
44. The footballer tried to foul.
45. The prisoner used foul language towards the policeman.
46. He had a foul mouth.
47. The smell was quite foul.
48. I've had a foul day at work.
49. He has a foul mouth on him!
50. Do not permit your dog to foul the grass.
51. The footballer made a professional foul.
52. What a foul day it is!
53. I'm sick of her foul mouth .
54. His action ran foul of the law.
55. He was booked by the referee for foul play.
56. Manufacturers may fall foul of the new government guidelines.
57. A foul miasma lay over the town.
58. She's in a foul mood.
59. He had fallen foul of the FBI.
60. I don't want to fall foul of the police.
More similar words: by fair means or foul, soul, joule, would, could, should, four, fourth, founder, founded, heart and soul, profound, dumbfound, confounded, foundation, dumbfounded, founding father.