WordWeb Online

1. Characterized by undue haste and lack of thought or deliberation
   "madcap escapade";
   - hotheaded, impulsive, impetuous, tearaway, brainish [archaic]

1. A reckless impetuous irresponsible person
   - daredevil, hothead, swashbuckler, lunatic, harum-scarum

Derived forms: madcaps

See also: incautious

Type of: adventurer, venturer

Encyclopedia: Madcap