Is “Nasty” a Scrabble word?
Yes
NASTY
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Nasty
/ˈnaː.sti/
noun
1.Something nasty.
“Processed foods are full of aspartame and other nasties.”
2.(preceded by "the") Sexual intercourse.
3.A video nasty.
adjective
1.Dirty, filthy.
2.Contemptible, unpleasant (of a person).
3.Objectionable, unpleasant (of a thing); repellent, offensive.