改定|かいていkaitei[0]heiban (flat)

JLPT N1approx.Common
かいじょうkaijou
Definitions
  1. 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.

Synonyms & antonyms
  • 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

Japanese definitions
  1. 法令ほうれい・規定きていや料金りょうきんなどを改あらため、新あらたに定さだめること。
Kanji in this word
English equivalents
See also

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

Say it right, write it right

Core lookup works fully offline, with cloud pronunciation and one-tap save & review. Free, no sign-up.

Free downloadWindowsFree downloadmacOSDownload on the App StoreGet it on Google Play
MobileiOS / Android

Android

QR code for the Google Play pageGet it on Google Play

Scan it with your Android phone to install, or search for “Tomoshi” on Google Play.

iOS

QR code for the App Store pageDownload on the App Store

Scan it with your iPhone camera to install, or search for “Tomoshi” in the App Store.

Install the browser extensionLook words up on any web page · Chrome / Edge / Safari

Screenshot of a Tomoshi lookup resultScreenshot of Tomoshi lookup results on a phone

Windows macOS Chrome / Edge / Safari extension iOS / Android