We found 2 Synonyms for Nincompoop

Synonym Len.
Poop 4
Ninny 5
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What are Synonyms?

Did you know that Nincompoop has other words with the same meaning that can help to enhance your communication efforts? These words are known as Synonyms.

For instance, instead of always saying Nincompoop, you could use Poop, which could fit your situation perfectly.