金こん剛ごう堅けん固ごMeaningsNoun1. firm and solid; sturdy and indestructible; unshakable; adamantineKanji used金gold剛sturdy堅firm固solidifyComposed of金こん剛ごうvajra (indestructible substance); diamond; adamantine; thunderbolt; Indra's weapon; Buddhist symbol of the indestructible truthNoun堅けん固ごsolid; strong; firmNa-adjective