nincompoop

This term carries a whimsical, almost comical tone of stupidity rather than a harsh or clinical judgment of intelligence. It suggests a person who is clumsily foolish or absurdly inept, often evoking an image of someone who makes obvious, laughable mistakes. Because of its playful sound, it is rarely used in formal professional settings and is instead found in casual, slightly old-fashioned, or ironic contexts.

As a countable noun, it follows standard English pluralization rules. It is used to label an individual's character or a specific instance of foolish behavior, typically functioning as a predicate nominative or a direct object in a sentence.