sarcasm
/ˈsɑrkæzəm/
noun
- The use of words that mean the opposite of what you really want to say, especially to insult or mock someone.
- I can't tell if you're being serious or if that's sarcasm.
- The teacher warned the student that sarcasm would not be tolerated in class.
- His comment was full of sarcasm, but she pretended not to notice.
Antonyms