一いっ定てい

い

っ

て

い

Common wordJLPTN3Freq.FrequencyTop 5,000

一定する · noun or participle which takes 'suru'

Form	Positive	Negative
Dictionary	一いっ定ていする	一いっ定ていしない
Polite	一いっ定ていします	一いっ定ていしません
Past polite	一いっ定ていしました	一いっ定ていしませんでした
Past	一いっ定ていした	一いっ定ていしなかった
Te-form	一いっ定ていして	一いっ定ていしないで
Desire	一いっ定ていしたい	一いっ定ていしたくない
Potential	一いっ定ていできる	一いっ定ていできない
Passive	一いっ定ていされる	一いっ定ていされない
Causative	一いっ定ていさせる	一いっ定ていさせない
Causative passive	一いっ定ていさせられる	一いっ定ていさせられない
Volitional	一いっ定ていしよう
Polite volitional	一いっ定ていしましょう
Imperative	一いっ定ていしろ	一いっ定ていするな
Conditional	一いっ定ていすれば	一いっ定ていしなければ
Tara conditional	一いっ定ていしたら	一いっ定ていしなかったら

Meanings

noun or participle which takes 'suru', transitive verb, intransitive verb

fix; settle; standardize; regularize

Transitive or intransitive use with する: to set something to a fixed standard, or for something to become fixed/uniform. Often used in formal, business, or technical contexts.

会かい議ぎの日にっ程

Related words· 7

固こ定ていN1sense 1

固定 emphasizes physically or structurally fixing something in place, while 一定 focuses on setting a standard or making something uniform/unchanging in value or condition.

統とう一いつN2sense 1

統一 means unifying or bringing together into one, whereas 一定 means making something constant or standardized without necessarily merging.

一いち律りつN1sense 2

一律 stresses that a rule or rate is applied equally to everyone without exception, while 一定 simply means a value or condition stays fixed/unchanging.

一いち様ようN1sense 2

一様 describes things being alike or uniform across a group, while 一定 describes a single value or standard staying constant over time.

Show 3 more

不ふ変へんN1
不変 stresses that something never changes at all, whereas 一定 just means fixed or constant at a given value and can allow later change.
コンスタント
一定 is a native Japanese word for 'fixed/constant' often used in formal or technical contexts, while コンスタント emphasizes steady, uninterrupted continuation and sounds more casual.
変かわらない
一定 describes a fixed, set quantity or rule, whereas 変わらない focuses on something staying the same over time, often emotionally or personally.

Don't confuse with

特とく定ていN2sense 2

一定 means fixed/constant (a single unchanging value or standard), while 特定 means specific/particular (a certain one singled out among many), and the two are often mixed up in phrases like ~の条件.

一いち定じょうN1

一定 read いってい is a common modern word meaning 'fixed' or 'constant', while 一定 read いちじょう is a rare archaic reading meaning 'certainly'; they share the same kanji but differ completely in reading and meaning.

Meanings

Usage patterns