Foul - definition of foul by The Free Dictionary 1 a Offensive to the senses; revolting: "a foul little creature with greedy eyes and slobbering mouth" (J R R Tolkien) b Having a bad odor or taste: foul breath; food that tasted foul c Rotten or putrid: foul meat 2 a Containing dirt, impurities, or other foreign matter; foul water
Foul Definition Meaning | Britannica Dictionary He was in a foul [= angry] mood The weather has been foul all week They do their job in fair weather and foul [=in good weather and bad weather]