How to say "accurate" in Japanese

Choosing the right word
  • 正確せいかくJLPT N3approx.Common
    na-adjective, nounThe default word for accurate in the sense of factually correct or free of error, as in answers, information, or reports. When unsure which word to pick for plain accuracy, this is usually the safest choice.
    この時計とけいの時間じかんは正確せいかくだ。↗
    This watch keeps correct time.
  • 的確てきかくJLPT N2approx.Common
    na-adjective, nounAccurate in the sense of apt and well-aimed: judgments, advice, or descriptions that hit the mark. It carries a nuance of appropriateness, so it suits correct assessments more than mere factual correctness.
    Such an accurate, lightning-quick reply. What can I say?
  • 精密せいみつJLPT N1approx.Common
    na-adjective, nounPrecise and exact in a technical or scientific sense, covering fine detail, as with instruments, measurements, or machinery. It suggests meticulous precision rather than simple correctness of facts.
    なぜならば、精密せいみつに検査けんさしても何なんか欠点けってんが現あらわれないほど美うつくしいものは存在そんざいしないからである。↗
    This is because there is nothing so beautiful that, even on close inspection, no defects will be found.
  • 整然せいぜんJLPT N1approx.Common
    taru-adjective, adverb (with と)Really means orderly, systematic, and well-organized, not accurate in the usual sense. It is seldom the word you want for accuracy; use it for neatly arranged data, rows, or thinking.
    その別荘べっそうは清潔せいけつで整然せいぜんとしていた。↗
    The cottage was clean and tidy.
  • 緻密ちみつCommon
    na-adjective, nounAccurate through careful, meticulous attention to detail, often describing reasoning, plans, or analysis. The nuance is thoroughness and fine-grained care rather than plain factual correctness.
    彼かれは緻密ちみつに立たてた計画けいかくを実行じっこうした。↗
    He carried out the plan he had made in detail.

Use 正確 for factual correctness, 的確 for apt accuracy, 緻密 for meticulous detail, 精密 for technical precision, and 整然 only for orderliness rather than accuracy.

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

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

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