How to say "discrepancy" in Japanese

Choosing the right word
  • 違いちがいJLPT N3approx.Common
    nounThe plain, general word for a difference between two things; it renders discrepancy in that broad sense, without specifically implying an error or a failure to match.
    私は1分ふん違ちがいで列車れっしゃに乗のり遅おくれた。↗
    I missed the train by a minute.
  • 錯誤さくごJLPT N1approx.Common
    nounA formal word for a mistake or error, especially in thought or reasoning; for 'discrepancy' it is seldom the word you want, since it denotes the error itself rather than a mismatch.
  • 相違そういJLPT N2approx.Common
    noun, suru verb, intransitive verbThe formal counterpart of 違い, typical of written and business language; reach for it when a difference or discrepancy between two things needs to be stated in careful prose.
    両者りょうしゃの間あいだには、あったとしても、相違そういはごくわずかである。↗
    There is little, if any, difference between the two.
  • 食い違いくいちがいCommon
    nounThe word for a discrepancy proper: things that should match but do not, such as conflicting statements, accounts, or figures; it also covers disagreement or clash between people.
    2人ふたりの意見いけんには大おおきな食い違くいちがいがあった。↗
    There was a great gap between the views of the two.
  • 誤差ごさJLPT N1approx.Common
    nounSpecifically a numerical discrepancy: the gap between a measured or calculated value and the true or expected one, typical of measurement, statistics, and engineering.

For a plain difference use 「違い」, or 相違 in formal writing; for statements or figures that fail to match use 「食い違い」; for gaps in measured or calculated values use 誤差; 錯誤 really means error, not discrepancy.

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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