<p><strong>Noun</strong></p><ul><li>utterly senseless or foolish behavior; a stupid or foolish act, statement, etc.</li><li>the quality or condition of being incongruous.</li><li>something incongruous.</li><li>an intellectual disability, previously classified in a now obsolete rubric of developmental disorders as having a mental age of less than three years old and an intelligence quotient under 25.</li></ul>