Como dizer "Desnaturado" em inglês

Donay, I've already found in a book called "The Canterville Ghost" by Oscar Wilde the word "Nasty" as a synonym for "Unpleasable" (Desagradável).
The Phrase was "How Nasty!"
Am I wrong?

Phrases using "Nasty":
1.So, yes, Doble is a nasty area, home to some nasty people, saying and doing nasty things.

2.Mittens is nasty, nasty, nasty when he is cornered.

3.It's true that nasty people have nasty dogs, simply because they are nasty people.

4.Nasty man, nasty party, nasty government.

5.He is not a nasty player and Stoke do not have nasty players.

Definitions to the word "Nasty":
1.Highly unpleasant, esp. to the senses; physically nauseating.

2.Offensive or even (of persons) malicious; "in a nasty mood"; "a nasty accident"; "a nasty shock"; "a nasty smell"; "a nasty trick to pull"; "Will he say nasty things at my funeral?".

Gustavo, you're right.

Good post!