Definitions

1. adjective

derived from or characterized by pleasure in giving pain or discomfort; showing or feeling a cruel and wicked pleasure in the pain or suffering of others

“The sadistic comments on social media were a disturbing trend.”

2. noun

a person who takes pleasure in causing pain or discomfort to others

“The sadist in the group was responsible for the bullying.”

3. verb

to take pleasure in giving pain or discomfort to someone or something

“She sadistically teased her little brother with a toy she knew he wanted.”