卑鄙 (bēi bǐ): base; mean; contemptible; despicable

In order to get that job, he actually spread rumors behind the scenes; such a despicable trick made everyone look down on him.

Taking advantage of others' kindness to swindle money is too despicable; sooner or later, it will be punished by law.

Deliberately injuring an opponent in a match—such a despicable act violates sportsmanship, and the referee immediately sent him off the field.

He pretended to be a good friend on the surface, but secretly sold the company's secrets; this despicable behavior ultimately cost him all trust.

That despicable merchant actually added harmful substances to food in order to make money, and as a result, he was arrested by the police.