单词：impregnability
音标：[ɪmpreɡnə'bɪlɪtɪ] ；
n. 攻不破, 不受影响
n. The quality or state of being impregnable;
invincibility.
invincibility.
词型变化：名词复数形式 : impregnabilities
【近义词】
- invulnerability不受伤害