irrevocable

adj. 不能改变的，无法取消的

irrepressible, irrepressibly, irreproachable, irreproachably, irresistible, irresistibly, irresolute, irresolutely, irresolution, irrespective, irresponsibility, irresponsible, irresponsibly, irretrievable, irretrievably, irreverence, irreverent, irreverently, irreversible, irreversibly, irrevocably, irrigable, irrigate, irrigation, irritability, irritable, irritably, irritant, irritate, irritating, irritation, irruption, is, is(o)-, Isaac Newton, ISBN, ISD, isinglass, Islam, Islamic,