Adjective hotheaded has 2 senses
- choleric, irascible, hotheaded, hot-tempered, quick-tempered, short, short-tempered - quickly aroused to anger; "a hotheaded commander"
Antonym: good-natured (indirect, via ill-natured)
- hotheaded, impulsive, impetuous, madcap, tearaway, brainish - characterized by undue haste and lack of thought or deliberation; "a hotheaded decision"; "liable to such impulsive acts as hugging strangers"; "an impetuous display of spending and gambling"; "madcap escapades"; (`brainish' is archaic)
Antonym: cautious (indirect, via incautious)
,