Adjective: hotheaded 'hót'he-did
- Quickly aroused to anger
"a hotheaded commander";
- choleric, irascible, hot-tempered, quick-tempered, short-tempered
- Characterized by undue haste and lack of thought or deliberation
"a hotheaded decision";
- impulsive, impetuous, madcap, tearaway, brainish [archaic]
See also: ill-natured, incautious