unattackable

adj.  耐侵蚀的; 不可攻破的;达不到的;不能完成的



英英释义

adj

  1. immune to attack
    1. an impregnable fortress
    2. fortifications that made the frontier inviolable
    3. a secure telephone connection

    Synonym:    impregnableinviolablesecurestrongunassailable