1. 易怒的;性情暴躁的
If you describe someone as irascible, you mean that they become angry very easily.
1. characterized by anger
e.g. a choleric outburst
an irascible response
Synonym: choleric
2. quickly aroused to anger
e.g. a hotheaded commander
Synonym: cholerichotheadedhot-temperedquick-temperedshort-tempered