堅けん忍にん

noun, noun or participle which takes 'suru', transitive verb, intransitive verb

perseverance; steadfast endurance

A somewhat formal or literary term for enduring hardship with firm resolve. Often used in contexts of moral strength or long-term effort.

• 彼かれはどんな困こん難なんにも堅けん忍にんの精せい神しんで立たち向むかった。

  He faced every difficulty with a spirit of perseverance.