The act of un-registering from a service.<br/><br/> Related actions:<br/><br/> <ul> <li><a class="localLink" href="http://schema.org/RegisterAction">RegisterAction</a>: antonym of UnRegisterAction.</li> <li><a class="localLink" href="http://schema.org/LeaveAction">LeaveAction</a>: Unlike LeaveAction, UnRegisterAction implies that you are unregistering from a service you werer previously registered, rather than leaving a team/group of people.</li> </ul>