1. (noun)daredevil, madcap, hothead, swashbuckler, lunatic, harum-scarum a reckless impetuous irresponsible person
2. (adj)hotheaded, impulsive, impetuous, madcap, tearaway(a), 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)
Definition of 'madcap'
