untick
verb [ T ] UK uk/ʌnˈtɪk/ us/ʌnˈtɪk/ (also mainly US uncheck)
（在电脑屏幕上取消选项框中之前划的一个勾而）取消选择，不再选中
to remove a tick from a box on a computer screen, so that the box is no longer selected
If you do not wish to subscribe, simply untick the Subscribe box. 如果您不希望订阅，只需取消“订阅”框中划的勾。