unattackable

  • adj.耐侵蚀的;不可攻破的;达不到的;不能完成的
unattackableunattackable

adj

1
immune to attack;incapable of being tampered with
an impregnable fortress
fortifications that made the frontier inviolable
a secure telephone connection
Synonym: impregnable inviolable secure strong unassailable

数据来源:WordNet