A legal instrument, such as a contract, agreement, or law, is considered unenforceable from its inception when deemed invalid from the beginning. This nullity arises because the instrument suffers from a fundamental flaw that prevents it from ever having legal effect. A practical example would be an agreement entered into by an individual legally declared incompetent; the agreement holds no legal standing as if it never existed.
The significance of this determination lies in its preventative nature; it avoids potential protracted legal disputes. By recognizing an agreement’s inherent invalidity early, parties can avoid investing time, resources, and potentially incurring damages based on a flawed foundation. Historically, the principle has been employed to protect vulnerable parties, uphold fundamental legal principles, and maintain the integrity of the legal system.