How to say "faithfully" in Japanese

Choosing the right word
  • 怠りなくおこたりなく
    adverbCovers 'faithfully' meaning one's duties are carried out without neglect or failure. It frames faithfulness as the absence of slacking — 'diligently, without fail' — and, being less common, is seldom the word for everyday 'faithfully'.
  • 拳拳けんけん
    adverbCovers 'faithfully' in a reverent, earnest sense — devoted respect rather than task performance, as in faithfully keeping to teachings or instructions. It really means 'respectfully, reverently' and is rarely the right choice for everyday 'faithfully'.

Both are less common choices: use 「怠りなく」 when 'faithfully' means carrying out duties diligently and without fail, and 拳拳 when it means reverent, earnest devotion, as in faithfully keeping to teachings.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents

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