The act of getting pleasure from making others feel bad or unhappy.
Sadisms are very bad and mean.
Examples:
His sadisms made everyone feel bad.
She enjoys sadisms and that's not nice.
The sadisms of the bully hurt my feelings.
The sadisms of the cat not letting the mouse go is not nice.
The sadisms of the witch in the story scared me.
The sadisms of the bad guy in the movie made me not like him.