In law, acquiescence occurs when a person knowingly stands by, without raising any objection to the infringement of their rights, while someone else unknowingly and without malice aforethought acts in a manner inconsistent with their rights. As a result of acquiescence, the person whose rights are infringed may lose the ability to make a legal claim against the infringer, or may be unable to obtain an injunction against continued infringement. The doctrine infers a form of "permission" that results from silence or passiveness over an extended period of time.