- a fool or simpleton.
Origin of nincompoop
Examples from the Web for nincompoop
When ye hear of a man a woman hez made, ye hears of a nincompoop.Jeff Briggs's Love Story
That a man with a weak, receding chin is always a nincompoop.The American Credo
George Jean Nathan
And I won't have it spoiled, by every nincompoop poking his nose into it.Perlycross
R. D. Blackmore
The nincompoop can always be counted on to deify the commonplace.The Fighting Chance
Robert W. Chambers
Wouldn't some nincompoop like Forsyth be perhaps, after all, his best choice?The Cathedral
Sir Hugh Walpole
- a stupid person; fool; idiot
Word Origin and History for nincompoop
1670s, nicompoop. Despite similarity [noted by Johnson] to Latin legal phrase non compos mentis "insane, mentally incompetent" (c.1600), the connection is denied by etymologists because the earliest forms lack the second -n-. Weekley thinks first element may be a proper name, and cites Nicodemus, which he says was used in French for "a fool," or Nicholas. Klein says probably an invented word.