Definitions
1.nounLack of cleanliness.
2.nounDirt, filth.
3.nounIndecency; corruption; unkindness, meanness, spite, harshness, cruelty.
4.nounUnpleasantness, disagreeableness (to the senses).
5.nounA nasty action, object, quality, etc. (all senses of nasty).