noun
definition
An impulsive, hasty, capricious person.
definition
An insane person, a lunatic.
adjective
definition
Impulsive, hasty or reckless; capricious.
example
The film featured a madcap car chase that went right through a crowded café.
Examples of madcap in a Sentence
An intricate knowledge of the sports world and madcap off-the-cuff comedy has established them as a totally unique commodity in the events market.
The track eventually develops into something not too dissimilar to ' Dayvan Cowboy ', with similar madcap drumming toward the end.
Giles Ponsford was not only stager manager and actor but also a madcap schemer in generating audiences for his show.
Simon Singh hosts a madcap half hour, mostly intellectual puzzles, a few involving props, and the occasional anagram.
Ginji does something really dumb and winds up in the middle of a madcap hospital farce.