Knowingly/ˈnəʊɪŋli/ Definition 1 of 2Pro Tip 1/3Intentional Deception Used when someone chooses to deceive others by hiding the truth. He knowingly withheld the evidence during the investigation. Pro Tip 2/3Aware of Truth Implies a person is aware of the factual truth but may act contrary to it. She knowingly smiled as she told the fabricated story. Pro Tip 3/3Emotional Weight Carries an implication that the action could have moral or ethical considerations. Knowingly betraying his friend's trust weighed heavily on him.