固定|こていkotei[0]heiban (flat)
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- noun, suru verb, transitive verb, intransitive verbfixing (in place); being fixed (in place); securing; anchoring; fastening down
- noun, suru verb, transitive verb, intransitive verbfixing (e.g. salary, capital); keeping the same
- noun, suru verb, transitive verb, intransitive verb, biologyfixation (histology)
- nounuser name (on an online forum like 2ch where the majority of users post anonymously)
- nounuser of an online handle (instead of posting anonymously)
Conjugation
| Dictionary form | 固定する(こていする) |
|---|---|
| Polite (masu) | 固定します(こていします) |
| Negative (nai) | 固定しない(こていしない) |
| polite (masen) | 固定しません(こていしません) |
| classical zu / nu | 固定せず・固定せぬ(こていせず・こていせぬ) |
| Past (ta) | 固定した(こていした) |
| polite (mashita) | 固定しました(こていしました) |
| Past negative (nakatta) | 固定しなかった(こていしなかった) |
| polite (masen deshita) | 固定しませんでした(こていしませんでした) |
| Te form | 固定して(こていして) |
| Potential | 固定できる(こていできる) |
| Passive | 固定される(こていされる) |
| Causative | 固定させる(こていさせる) |
| Causative passive | 固定させられる(こていさせられる) |
| Conditional (ba) | 固定すれば(こていすれば) |
| tara | 固定したら(こていしたら) |
| Volitional | 固定しよう(こていしよう) |
| polite (mashou) | 固定しましょう(こていしましょう) |
| Imperative | 固定しろ(こていしろ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Related据え付けるすえつけるNeutralFor setting up machinery etc. so it stays put, as in 「機械を据え付ける」; the emphasis is on installing, while 「固定」 stresses not moving.
- Related不動ふどうWrittenWritten/formal noun for being motionless or unshakable, as in 「不動の地位」; leans toward the abstract.
- Related据えるすえるNeutralTo set something firmly in place, as in 「腰を据える」; it can also mean settling one's mind on something.
- RelatedくっつけるCasualColloquial: to stick or paste two things together; the point is that they are joined, not that they stay fixed in place.
- RelatedつけるNeutralThe broadest of these: to attach or fit something on. It does not stress that the thing is held firmly in place.
- Related作り付けるつくりつけるNeutralTo attach something to another object so it cannot easily be removed, as in 「作り付けの棚」 (a built-in shelf).
- Related引っ付けるひっつけるCasualColloquial: to stick things together firmly; close to 「くっ付ける」, it only expresses joining and does not stress staying fixed.
- Antonym可動かどうWrittenWritten noun for being movable, as in 「可動式」; the direct opposite of 「固定」.
- Antonym移動いどうNeutralA noun for moving or transferring something from one place to another; it stands opposite to being fixed in place.
Use 「固定」 for making something immobile or keeping it unchanged, as in 「固定電話」 and 「固定費」. For installing machinery use 「据え付ける」, for built-in fittings 「作り付ける」, and for an unshakable position 「不動」. Use 「可動」 for what can be moved, 「移動」 for moving.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


