<p><strong>Noun</strong></p><ul><li>the act of denying: He shook his head in negation of the charge.</li><li>a denial: a negation of one's former beliefs.</li><li>something that is without existence; nonentity.</li><li>the absence or opposite of something that is actual, positive, or affirmative: Darkness is the negation of light.</li><li>a negative statement, idea, concept, doctrine, etc.; a contradiction, refutation, or rebuttal: a shameless lie that demands a negation.</li></ul>