How to say "conformity" in Japanese

Choosing the right word
  • 適合てきごうCommon
    no-adjective, suru verb, intransitive verbConformity to a standard, rule, or requirement: something fitting what is demanded of it, the sense used for meeting technical or regulatory norms. It also covers compatibility.
    私は都会とかいの生活せいかつには適合てきごうできないだろう。↗
    I will not be able to fit in with the city life.
  • 同調どうちょうJLPT N1approx.Common
    noun, suru verb, intransitive verbConformity in the social sense: bringing your opinions or behavior into line with the people around you and going along with the group. This is conformity to others, not to rules or standards.
    その計画けいかくでは彼かれに同調どうちょうできました。↗
    We went with him on that plan.
  • 適応てきおうJLPT N1approx.Common
    noun, suru verb, intransitive verbChiefly 'adaptation': adjusting to an environment or to new circumstances. Its link to 'conformity' is marginal — when you mean conforming to a rule or a group, one of the other words is usually better.
    この規則きそくはすべてのケースに適応てきおうする。↗
    This rule applies to all cases.
  • 整合せいごうCommon
    suru verb, intransitive verb, no-adjectiveConformity as consistency or coherence: parts, plans, or statements fitting together without contradiction or being brought into line. Closer to integration and coordination than to compliance with rules.
  • 符合ふごうCommon
    noun, suru verb, intransitive verbConformity as correspondence or coincidence: two things, such as a statement and the facts, matching or bearing each other out. Not the word for compliance with rules — it is really about things coinciding.
    その記事きじは事実じじつと符合ふごうしない。↗
    This account does not agree with the facts.

Choose 適合 for conformity to standards or requirements, 同調 for going along with others, 適応 for adapting to circumstances, 整合 for consistency or coherence, and 符合 for two things coinciding or matching.

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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