How to say "properly" in Japanese

Choosing the right word
  • よくJLPT N5approx.Common
    adverbCovers 'properly' in the sense of doing something well or skillfully. When 'properly' simply means 'well' — doing a job well, sleeping well — this is the word you want.
    そのプロジェクトはよく計画けいかくされていて興味きょうみ深ぶかいが、当面とうめんの利益りえきには大たいした結果けっかをもたらさないと見みられている。↗
    The project is well-planned and interesting, but its immediate impact on the bottom line is not considered substantial.
  • よろしくJLPT N3approx.Common
    expression, adverbBest known from polite requests and greetings; as an adverb it means 'suitably, properly', typically asking someone to handle or pass on something appropriately. Seldom the word for 'properly' itself.
  • きちんとJLPT N3approx.Common
    adverb, suru verbCovers 'properly' as doing something neatly, exactly, and in the correct way, without sloppiness. Typical of tidying things up, keeping arrangements orderly, or giving accurate explanations.
    私の時計とけいはきちんと動うごいている。↗
    My watch is running all right.
  • ちゃんとJLPT N3approx.Common
    adverb, suru verbIt overlaps with きちんと, covering 'properly' as doing something as one should, completely and without cutting corners; often used when telling someone to do a task properly.
    この道具どうぐはちゃんと使つかえばとても役やくに立たつ。↗
    If it is used properly, this tool will be a great help.
  • adverb (with と)Colloquial; 'properly' here means fully or substantially, as in eating a hearty meal or earning a good amount. Seldom the word you want for 'properly' in the sense of doing something correctly.

Choose 「よく」 when 'properly' means doing something well, 「きちんと」 or 「ちゃんと」 for doing it neatly and as one should, 「よろしく」 chiefly in polite requests, and 「がっつり」 only for doing something fully or heartily.

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

Japanese equivalents
See also

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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