Madcap Definition

mădkăp
adjective
Behaving or acting impulsively or rashly; wild.
American Heritage
Reckless, uninhibited, or zany.
Madcap pranks.
Webster's New World
Antonyms:
noun
A reckless, impulsive, or uninhibited person, orig. esp. a girl.
Webster's New World

Other Word Forms of Madcap

Noun

Singular:
madcap
Plural:
madcaps

Origin of Madcap

  • 1580s, mad +"Ž cap (“head"), literally “crazy head". Original literal sense “lunatic, crazy person", now used figuratively.

    From Wiktionary

  • mad cap head

    From American Heritage Dictionary of the English Language, 5th Edition