tap / space
Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
The noun is derived from mad + cap (“(informal) head”). The adjective is from an attributive use of the noun.
daredevil, hothead, swashbuckler, lunatic, harum-scarum
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tap / space
Classic usage
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