改定|かいていkaitei[0]heiban (flat)
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- noun, suru verb, transitive verbrevision (of a rule, price, etc.); alteration; change
Conjugation
| Dictionary form | 改定する(かいていする) |
|---|---|
| Polite (masu) | 改定します(かいていします) |
| Negative (nai) | 改定しない(かいていしない) |
| polite (masen) | 改定しません(かいていしません) |
| classical zu / nu | 改定せず・改定せぬ(かいていせず・かいていせぬ) |
| Past (ta) | 改定した(かいていした) |
| polite (mashita) | 改定しました(かいていしました) |
| Past negative (nakatta) | 改定しなかった(かいていしなかった) |
| polite (masen deshita) | 改定しませんでした(かいていしませんでした) |
| Te form | 改定して(かいていして) |
| Potential | 改定できる(かいていできる) |
| Passive | 改定される(かいていされる) |
| Causative | 改定させる(かいていさせる) |
| Causative passive | 改定させられる(かいていさせられる) |
| Conditional (ba) | 改定すれば(かいていすれば) |
| tara | 改定したら(かいていしたら) |
| Volitional | 改定しよう(かいていしよう) |
| polite (mashou) | 改定しましょう(かいていしましょう) |
| Imperative | 改定しろ(かいていしろ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym改正かいせいNeutralMostly for fixing flaws in laws and rules, as in 「憲法改正」; 「改定」 is about setting new content for prices, rules, and the like.
- Synonym修正しゅうせいNeutralFixes errors or deviations, e.g. 「計画の修正」, leaning toward partial adjustment; 「改定」 means establishing anew.
- Synonym改めるあらためるNeutralNative verb for changing or correcting, e.g. 「規則を改める」; broader than 「改定」, and can also cover mending one's attitude.
- Synonym直すなおすNeutralEveryday verb for correcting or fixing, taking very varied objects; 「規定を直す」 is possible. For formally resetting prices or rules, 「改定」 prevails.
- Synonym変更へんこうNeutralA general change to plans, settings, etc., not necessarily setting a new standard; 「改定」 specifically re-establishes rules or fees.
- Synonym改変かいへんWrittenWritten/formal prose. Alters original content so it differs from before, not limited to rules; 「改定」 re-establishes rules, fees, etc.
- Synonym変えるかえるNeutralThe commonest native verb for change, with no restriction on objects; the formal re-establishment of rules or fees is 「改定」.
- Synonym手を加えるてをくわえるNeutralIdiom for reworking or refining something existing, with a wide range of objects; not specifically the resetting of rules or fees.
- Related手直してなおしNeutralSmall rework on something largely finished, e.g. 「原稿の手直し」; not used for re-establishing prices or rules.
- Related直しなおしNeutralNoun broadly covering text edits, corrections, or repairs; frequent in speech. Formal resetting of rules or prices is generally 「改定」.
- Related訂正ていせいNeutralCorrects mistakes in statements or records, e.g. 「誤りを訂正する」; 「改定」 does not presuppose that anything is wrong.
- Related補正ほせいWrittenWritten/formal prose. Fills gaps or corrects errors, e.g. 「補正予算」「色補正」; 「改定」 re-establishes rules and is not about supplementing.
- Related改編かいへんWrittenWritten/formal prose. Reorganizes bodies, programs, or edited works, e.g. 「番組改編」; 「改定」 applies to rules and fees.
- Related改訂かいていWrittenHomophone. Revises the content of books or writings, e.g. 「改訂版」; 「改定」 applies to laws, rules, and fees.
- Related正すただすNeutralCorrects errors or straightens posture, e.g. 「姿勢を正す」, aiming to make things right; not used for resetting fees.
- Related入れ替えるいれかえるNeutralReplaces what is inside or swaps the order, e.g. 「空気を入れ替える」; unlike 「改定」, it does not re-establish rules.
- Related訂するていするWrittenWritten/formal prose. Corrects errors but is rare today; say 「訂正する」 in daily use. 「改定」 is not error-fixing but re-establishing.
- Related改版かいはんWrittenWritten/formal prose. Produces a new edition of a publication or revises it; 「改定」 is not used for publications, only rules and fees.
- Antonym据え置きすえおきNeutralLeaves things as they stand, e.g. 「料金据え置き」; the opposite of 「改定」 when it comes to changing fees or rules.
Use 「改定」 for re-establishing laws, rules, or fees, as in 「料金改定」 and 「規約の改定」. To fix flaws in a law say 「改正」; to revise a book say 「改訂」. The opposite — leaving fees or rules unchanged — is 「据え置き」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


