nastiness; perversity
Describes a person's character or behavior as nasty, mean-spirited, or perverse, often with a sense of moral repugnance.
His tie is in bad taste.
I think that flashy decoration is gaudy.
I'm fed up with his nasty jokes.
I can't forgive such perverse behavior.
Compound of 悪 (bad) and 趣味 (taste). The word is transparently derived from its components.