Definitions

1. adjective

lacking politeness or good manners; impolite or uncivil

“He was being rude to the waiter, not even saying please or thank you.”

2. noun

an act or instance of being impolite or offensively rough

“The rude comments on social media sparked a heated debate.”

3. verb

to behave in a way that is impolite or offensively rough

“She was rude to her sister, and they got into a fight.”