1. To intentionally insult someone; especially, openly in order to cause displeasure, anger, and resentment: "Don't affront the speaker by asking him such rude questions."
2. To do or to say something which shows a lack of respect or consideration for someone or someone's feelings: "The customer was affronted by the salesperson's rude behavior."
3. Making an obvious and intentional offense, slight, or insult: "The supervisor affronted his employee by saying, 'Your proposals have no practical value; so, don't make such suggestions again.' "