JMdict: 2033010

要害堅固 【ようがいけんご】

  1. [n,adj-no] (a fortress being) impregnable; unassailable
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Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
要 Need, Main Point, Essence, Pivot, Key To ヨウ い.る, かなめ 4
害 Harm, Injury ガイ 4
堅 Strict, Hard, Solid, Tough, Tight, Reliable ケン かた.い, -がた.い
固 Harden, Set, Clot, Curdle コ かた.める, かた.まる, かた.まり, かた.い 4