madcap

adjective

mad·​cap ˈmad-ˌkap 

: marked by capriciousness, recklessness, or foolishness

madcap noun

Synonyms of madcap

• reckless
• daredevil
• courageous
• adventurous
• brave
• audacious
• foolhardy
• heroic
• daring

Examples of madcap in a Sentence

a madcap scheme to go over Niagara Falls in a barrel

Recent Examples on the Web

The film follows the madcap antics of a group of sports-car fans racing coast-to-coast from New York to California. — Howard Walker, Robb Report, 21 Aug. 2026

But frankly, who cares about logic or canon when the results are so much madcap fun? — Richard Edwards, Space.com, 20 Aug. 2026

The Fifth Element is a stunning combo of thrilling action, thoughtful ideas, madcap performances, and literally awesome set design. — Declan Gallagher, Entertainment Weekly, 14 Aug. 2026

The crumbling institution makes an appropriately strange backdrop for a romp that mixes madcap antics, tangled romantic relationships, and the frank, sometimes enthusiastically gross sexuality that is one of Waller-Bridge’s signatures. — Judy Berman, Time, 11 Aug. 2026

Word History

First Known Use

1591, in the meaning defined above

Rhymes for madcap

• bandgap
• bitmap
• blackcap
• blackstrap
• bootstrap
• burlap
• claptrap
• entrap
• foolscap
• kidnap
• kneecap
• mayhap

Kids Definition

madcap

adjective

mad·​cap ˈmad-ˌkap 

: reckless, wild

madcap noun