堅けん忍にん持じ久きゅうけんにんじきゅうじ字FuriganaMeanings1noundogged perseverance; untiring patienceA somewhat formal or literary noun describing the quality of enduring hardship with unwavering determination and patience.彼かれの堅けん忍にん持じ久きゅうの精せい神しんが、ついに難なん事じ業ぎょうを成せい功こう