<p><strong>adjective:</strong></p><ul><li>having little or no meaning; making little or no sense:<ul><li>A baby's babbling is appealingly nonsensical.</li></ul></li><li>(of behavior, conduct, actions, etc.) foolish, senseless, fatuous, or absurd:<ul><li>His nonsensical behavior was unusual for such a serious person.</li></ul></li><li>objectionable, impudent, insubordinate:<ul><li>I refuse to listen to that nonsensical gossip.</li></ul></li><li>of trifling importance or of little or no use:<ul><li>I've had more than enough of your nonsensical advice!</li></ul></li></ul>