How to say "appropriately" in Japanese

• しかるべく
  adverbCovers 'appropriately' as 'properly, as is fitting': handling or dealing with a matter as it ought to be handled. The less common of the two, and usually written in kana alone.
• 適宜てきぎJLPT N1approx.Common
  noun, adverbCovers 'appropriately' as 'as required, at one's discretion': adjusting or doing something as circumstances warrant, by one's own judgment. A common word, typical of instructions that tell you to adjust something as needed.
  全角ぜんかく文字もじを含ふくむファイル名めいの場合ばあい、一部いちぶのＯＳでは文字もじ化ばけが生しょうじることがありますので、ダウンロードの際さいに適宜てきぎファイル名めいを変更へんこうしてください。↗

  On some OS's you get gibberish for filenames with full-width characters so when downloading please change to a suitable filename.

Use 適宜 for the common 'as required, at one's discretion' sense of adjusting or acting as circumstances warrant; 「しかるべく」, the less common choice, covers doing something properly, as is fitting.

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

• しかるべくappropriately
• 適宜てきぎappropriately