nincompoop

[ nin-kuh m-poop, ning- ]

/ ˈnɪn kəmˌpup, ˈnɪŋ- /

a fool or simpleton.

Origin of nincompoop

First recorded in 1670–80; origin uncertain

nin·com·poop·er·y, noun nin·com·poop·ish, adjective

The man's voice was full of contempt for the nincompoop who couldn't use his head.

The Riddle of the Frozen Flame |Mary E. Hanshew
That young Welsh nincompoop imp has his eyes everywhere; his ears are always open.

The Cambrian Sketch-Book |R. Rice Davies
When ye hear of a man a woman hez made, ye hears of a nincompoop.

Jeff Briggs's Love Story |Bret Harte
And now because a monstrous piece of good luck has made a Crichton of him, you begin to regret the nincompoop!

Archibald Malmaison |Julian Hawthorne

And I won't have it spoiled, by every nincompoop poking his nose into it.

Perlycross |R. D. Blackmore

nincompoop

/ (ˈnɪnkəmˌpuːp, ˈnɪŋ-) /

a stupid person; fool; idiot

C17: of unknown origin