An adverb meaning to do something without fail or omission; to continue a habit diligently (e.g. to practice without missing a day).
彼は毎朝欠かさずジョギングをしている。
He goes jogging every morning without fail.
誕生日には欠かさず両親に電話をかける。
He calls his parents on their birthdays without fail.
会議の議事録は欠かさず共有してください。
Please be sure to share the meeting minutes without fail.