- choleric, irascible, hotheaded, hot-tempered, quick-tempered, short, short-tempered - quickly aroused to anger; "a hotheaded commander"
Antonym: good-natured (indirect, via ill-natured)
- choleric, irascible - characterized by anger; "a choleric outburst"; "an irascible response"
Antonym: unangry (indirect, via angry)