湾曲・彎曲・弯曲・わん曲|わんきょくwankyoku[0]heiban (flat)
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Which spelling to use
湾曲湾曲 is the most common written form. It uses kanji only and is the form beginners should normally choose when writing.
彎曲彎曲 is a less common kanji-only written form than 湾曲. You may encounter it in writing, but beginners should use 湾曲 instead.
弯曲弯曲 is less common than 湾曲 and 彎曲. It is written with kanji only and may be encountered as an alternative written form.
わん曲わん曲 is the least common of these written forms. It combines kanji and kana, but beginners should use 湾曲 instead.
Definitions
- noun, suru verb, intransitive verbcurve; bend; crook
Conjugation
| Dictionary form | 湾曲する（わんきょくする） |
|---|---|
| Polite (masu) | 湾曲します（わんきょくします） |
| Negative (nai) | 湾曲しない（わんきょくしない） |
| polite (masen) | 湾曲しません（わんきょくしません） |
| classical zu / nu | 湾曲せず・湾曲せぬ（わんきょくせず・わんきょくせぬ） |
| Past (ta) | 湾曲した（わんきょくした） |
| polite (mashita) | 湾曲しました（わんきょくしました） |
| Past negative (nakatta) | 湾曲しなかった（わんきょくしなかった） |
| polite (masen deshita) | 湾曲しませんでした（わんきょくしませんでした） |
| Te form | 湾曲して（わんきょくして） |
| Potential | 湾曲できる（わんきょくできる） |
| Passive | 湾曲される（わんきょくされる） |
| Causative | 湾曲させる（わんきょくさせる） |
| Causative passive | 湾曲させられる（わんきょくさせられる） |
| Conditional (ba) | 湾曲すれば（わんきょくすれば） |
| tara | 湾曲したら（わんきょくしたら） |
| Volitional | 湾曲しよう（わんきょくしよう） |
| polite (mashou) | 湾曲しましょう（わんきょくしましょう） |
| Imperative | 湾曲しろ（わんきょくしろ） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Synonyms & antonyms
- SynonymカーブNeutralRefers to bends and curves, as in roads, and even a baseball curveball. 「湾曲」 is written-style and describes a bow-shaped bend.
- Synonym曲折きょくせつWrittenWritten-style: winding, but mostly figurative for ups and downs in events, as in 「紆余曲折」; 「湾曲」 covers shape only.
- Synonym屈折くっせつWrittenBending or twisting, also the refraction of light and a warped mind; 「湾曲」 means only a bow-shaped bend.
- Synonym曲がりまがりNeutralA noun for a bend or a bend in the road, also the degree of bending; 「湾曲」 is more written and stresses the bow shape.
- SynonymベンドNeutralA loanword for the bent part of a pipe or rope; rarely used. 「湾曲」 is the standard word for a bow-shaped bend.
- Related曲線きょくせんNeutralA curved line, a term used in mathematics; 「湾曲」 describes the state of an object bent into a bow shape.
- Related曲がるまがるNeutralThe most general verb for bending or turning; 「湾曲」 is a noun or suru-verb and leans written/formal.
- Related反るそるNeutralRead 「かえる」 it means to return; only 「反る」 read 「そる」 means bending backward. 「湾曲」 is a bow-shaped bend.
- RelatedカールNeutralAbout curling hair or having curls; 「湾曲」 describes an object bent into a bow shape.
- Related曲げるまげるNeutralA transitive verb for bending something, also figuratively for distorting; 「湾曲」 refers to the shape itself.
- Related屈曲くっきょくWrittenWritten-style: bending or folding, also the flexing of a joint. 「湾曲」 suggests a gentle bow shape.
- Related反らすそらすNeutralA transitive verb for bending the body or an object backward; 「湾曲」 names the state of being bent.
- Related反らせるそらせるNeutralLike 「反らす」, it means to bend something backward; 「湾曲」 describes the resulting bow shape.
- RelatedたわみWrittenBending or sagging under a load, as the deflection of a beam; 「湾曲」 does not necessarily involve force.
- Relatedひん曲げるひんまげるCasualColloquial: to bend or wrench something with great force, or to distort facts; 「湾曲」 speaks only of shape.
- Antonym直線ちょくせんNeutralA straight line, the opposite of the bending 「湾曲」 describes.
- Antonym真直ぐますぐNeutralStraight; the direct opposite of the bending that 「湾曲」 describes.
- Antonym真直しんちょくNeutralAlso describes an upright, honest character; in shape it stands opposite to 「湾曲」.
For everyday bending or turning, 「曲がる」 and 「カーブ」 are the default. 「湾曲」 is written-style and describes an object bent into a bow shape, as in 「脊椎の湾曲」. For figurative twists and turns in events, use 「曲折」. To bend something, use the transitive 「曲げる」. The rest cover special cases — curls (「カール」), sagging under load (「撓み」), refraction (「屈折」) — while 「真直ぐ」 and 「直線」 are the opposites.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese definitions
Kanji in this word
English equivalents
See also
