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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91. I'd avoid her if I were you - she's in a foul temper.
92. He was clearly guilty of foul play and deserved to be sent off.
93. When the ads appeared, it was the Democrats' turn to cry foul.
94. Take off those foul clothes and let me wash them.
95. He was sent off for a foul on the French captain.
96. One of the judges thought it was a foul throw.
97. It was a clear foul by Ford on the goalkeeper.
98. Judge Isabel Oliva said last night: "I have closed the case. There was no foul play.".
99. It is an offence to let your dog foul a footpath.Sentencedict
100. By parking your car here, you could fall foul of the law.
101. Police immediately began an investigation, but did not suspect foul play .
102. The footballer brought down his opponent with a cynical foul.
103. Beckham was sent off for a foul in the second half.
104. Refugees in the camps are short of food and at risk from foul water.
105. He lit a cigarette and started to foul up the air with stinging yellow smoke.
106. The spring was foul this year it was cold and wet for weeks.
107. It's a foul night tonight; it's pouring with rain with thundering and lightning.
108. He was sent off for using foul language in a match last Sunday.
109. The chain has fallen foul of some plants in the water.
110. The manager was in a foul mood and was shouting at everyone.
111. A foul haze of pollution hung over the city.
112. Check that nothing can foul the moving parts.
113. The police suspect foul play.
114. Residents have complained of foul odors from the factory.
115. Never use foul language to a customer.
116. Murphy scored 78 consecutive foul shots without a miss.
117. The autopsy report showed no evidence of foul play.
118. Don't foul up this chance.
119. Shards of glass were embedded in the foul slippery mess,[sentencedict.com] and we tried to avoid stepping into the deepest parts.
120. The foul haze of pollution has meant an increase in asthma cases.
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.