1. (adj)foul an act that violates the rules of a sport
2. (adj)disgusting, disgustful, distasteful, foul, loathly, loathsome, repellent, repellant, repelling, revolting, skanky, wicked, yucky 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"
3. (adj)fetid, foetid, foul, foul-smelling, funky, noisome, smelly, stinking, ill-scented offensively malodorous "a foul odor"; "the kitchen smelled really funky"
4. (adj)cheating(a), dirty, foul, unsporting, unsportsmanlike violating accepted standards or rules "a dirty fighter"; "used foul means to gain power"; "a nasty unsporting serve"; "fined for unsportsmanlike behavior"
5. (adj)foul (of a baseball) not hit between the foul lines
6. (adj)dirty, foul, marked-up (of a manuscript) defaced with changes "foul (or dirty) copy"
7. (adj)cruddy, filthy, foul, nasty, smutty characterized by obscenity "had a filthy mouth"; "foul language"; "smutty jokes"
8. (adj)filthy, foul, nasty disgustingly dirty; filled or smeared with offensivematter "as filthy as a pigsty"; "a foul pond"; "a nasty pigsty of a room"
9. (verb)afoul(ip), foul, fouled especially of a ship's lines etc "with its sails afoul"; "a foul anchor"
11. (verb)pollute, foul, contaminate make impure "The industrial wastes polluted the lake"
12. (verb)clog, choke off, clog up, back up, congest, choke, foul become or cause to become obstructed "The leaves clog our drains in the Fall"; "The water pipe is backed up"
4. foul covered with, or containing, extraneous matter which is injurious, noxious, offensive, or obstructive; filthy; dirty; not clean; polluted; nasty; defiled; as, a foul cloth; foul hands; a foul chimney; foul air; a ship's bottom is foul when overgrown with barnacles; a gun becomes foul from repeated firing; a well is foul with polluted water
9. foul not favorable; unpropitious; not fair or advantageous; as, a foul wind; a foul road; cloudy or rainy; stormy; not fair; -- said of the weather, sky, etc
10. foul not conformed to the established rules and customs of a game, conflict, test, etc.; unfair; dishonest; dishonorable; cheating; as, foulplay
11. foul having freedom of motion interfered with by collision or entanglement; entangled; -- opposed to clear; as, a rope or cable may get foulwhile paying it out
12. (verb)foul to make filthy; to defile; to daub; to dirty; to soil; as, to foul the face or hands with mire
14. (verb)foul to cover (a ship's bottom) with anything that impered its sailing; as, a bottom fouled with barnacles
15. (verb)foul to entangle, so as to impede motion; as, to foul a rope or cable in paying it out; to come into collision with; as, one boat fouled the other in a race
16. (verb)foul to become clogged with burnt powder in the process of firing, as a gun
17. (verb)foul to become entagled, as ropes; to come into collision with something; as, the two boats fouled
Definitions of foul 
Afrikaans: onaangename
Arabic: فاسِد، كريه
Bulgarian: отвратителен
Brazilian: ruim
Czech: hnusný, páchnoucí
German: faul
Danish: modbydelig; afskyelig
Greek: απαίσιος, αηδιαστικός, βρ
Spanish: asqueroso, fétido
Estonian: jälk
Farsi: متعفن
Finnish: paha
French: infect
Hebrew: מַבחִיל
Hindi: बदबूदार
Croatian: neugodan, smrdljiv
Hungarian: rossz szagú
Indonesian: menjijikkan
Icelandic: fúll, viðbjóðslegur
Italian: cattivo
Japanese: むかつくような
Korean: 역겹도록 싫은
Lithuanian: bjaurus
Latvian: (par garšu, smaku) riebīg
Malay: menjijikkan
Dutch: vies
Norwegian: illeluktende, stinkende
Polish: wstrętny, paskudny
Persian: متعفن
Pashto: ناوړه، دشرم وړ، بى قاعدې،
Portuguese: ruim
Romanian: scabros
Russian: отвратительный
Slovak: hnusný
Slovenian: gnusen
Serbian: neprijatan
Swedish: dålig, skämd
Thai: น่ารังเกียจ
Turkish: iğrenç
Taiwanese: 難聞的
Ukrainian: смердючий
Urdu: بدبودار
Vietnamese: hôi hám; hôi thối
Chinese: 难闻的
