Переклад англійською з японської: 断々固たる
Словник: main
断々固たる
形容詞
2 confident,  convinced,  fast,  firm,  incontrovertible,  irrefutable,  loyal,  positive,  resolute,  steadfast,  steady,  stiff,  truehearted,  unbendable,  unfaltering,  unshakable,  unwavering. 
3 determined,  fast,  firm,  loyal,  resolute,  steadfast,  steady,  stiff,  truehearted,  unbendable,  unfaltering,  unshakable,  unwavering.