adj.
1.highly offensive
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.thoroughly unpleasant
7.characterized by obscenity
8.disgustingly dirty
9.especially of a ship's lines etc foul n.
1.an act that violates of the rules of a sport foul v.
1.hit a foul ball
2.make impure
3.become or cause to become obstructed
4.commit a foul
5.spot, stain, or pollute
6.make unclean
7.become soiled and dirty