1. Extremely angry; enraged; furious, indignant, ireful, wrathful: "The irate protesters were turning cars over and breaking the windows of the stores on the street."
2. Characterized or occasioned by anger: "She made an irate phone call for a taxi because the bus was so late."
3. Showing or typical of great anger: "His irate neighbors yelled at him for having such a loud party; especially, so late at night."