3 文書を見つけるための辞書。

• 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

• strong, solid, substantial
• 丈夫, 強い, 堅固
• of good quality and condition; solidly built; "a solid foundation"; "several substantial timber buildings"
• 品質と状態が良い

• solid
• 堅固
• of a substantial character and not frivolous or superficial; "work of solid scholarship"; "based on solid facts"
• 実体のある性質であり、軽薄でも表面的でもない