impregnable 

  1. 形容詞
堅不可摧的, 攻不破的
可以受孕的, 可以受精的
無法攻取的, 難攻陷的
要塞堅固的
impregnable to ...(攻擊等):
不被...摧毀的
...攻不破的

    同義字詞
bulletproof,indomitable,insuperable,insurmountable,invincible,invulnerable,unbeatable,unconquerable,unstoppable
impassable,impassible,impenetrable,impermeable,impervious

例句

  1. The town was thus considered impregnable .
  2. TRIPURA The three impregnable cities of Maya.
  3. The darkness of their world seemed impregnable .
  4. He was an island, self-contained and impregnable .
  5. Nearly sixty officers of HMS Impregnable attended.