要よう害がい堅けん固ごMeaningsNounNo-adjective1. (a fortress being) impregnable; unassailable (Yojijukugo)Kanji used要needed害harm堅firm固solidifyPitch accentようがいけんごComposed of要ようmain point; essential point; important thing; necessity; need; requirementNoun害がいinjury; harm; evil influence; damageNoun堅けん固ごsolid; strong; firmNa-adjective