Legal Definition of Sane: The state of having mental competence and soundness of mind; knowing right from wrong, being capable of intelligent reasoning, and generally acting in a normal, socially acceptable manner. The opposite of insane or mentally incompetent | Understand the legal definition of sane and its impact on your business. Learn what it means to be sane, how it affects decision making, and why it is crucial in legal proceedings. Enhance workplace safety and create a positive environment by recognizing signs of mental health issues. Ensure your business operates responsibly with a clear understanding of sanity