nincompoop – a foolish or stupid person

(Pronounced nin-kuhm-poop)

To remember the definition of the word nincompoop, use the following mnemonic:

He thought he could make an income from poop (nincompoop) despite everyone calling him a foolish and stupid person.

Examples of nincompoop in a sentence

She couldn't believe she'd married such a nincompoop.

Only a nincompoop could've come up with such a terrible plan. 

It was a wonder the business was still running given the owner was a nincompoop.