impregnable   (Sound)

The impregnable has 3 Senses.

• unattackable, strong, secure, impregnable, unassailable, inviolable
• 岩乗, 堅牢, 安全, 堅い, 頑丈, 牢固たる, 聢り, 頑強, 安泰, 強い, 確り, 堅固, 強固, 固い
• immune to attack; incapable of being tampered with; "an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection"
• 攻撃に対しての免疫がある

• conceptive, impregnable
• 険要
• capable of conceiving
• 思い浮かべることができる

• impregnable, inexpugnable
• 険要
• incapable of being overcome, challenged or refuted; "an impregnable argument"; "impregnable self-confidence"
• 克服される、挑戦ざれる、または反駁される