成形・成型|せいけいseikei[0]heiban (flat)
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Which spelling to use
成形成形 is the more common written form and the one beginners should normally use when writing about forming, shaping, fashioning, or casting.
成型成型 is a less common written variant of 成形; learners are likely to encounter 成形 more often and should generally choose it instead.
Definitions
- noun, suru verb, transitive verbforming; shaping; fashioningesp. 成形
- noun, suru verb, transitive verbcasting; molding; moulding; compacting (e.g. in metallurgy)esp. 成型
- noun, biologyadult form
Conjugation
| Dictionary form | 成形する（せいけいする） |
|---|---|
| Polite (masu) | 成形します（せいけいします） |
| Negative (nai) | 成形しない（せいけいしない） |
| polite (masen) | 成形しません（せいけいしません） |
| classical zu / nu | 成形せず・成形せぬ（せいけいせず・せいけいせぬ） |
| Past (ta) | 成形した（せいけいした） |
| polite (mashita) | 成形しました（せいけいしました） |
| Past negative (nakatta) | 成形しなかった（せいけいしなかった） |
| polite (masen deshita) | 成形しませんでした（せいけいしませんでした） |
| Te form | 成形して（せいけいして） |
| Potential | 成形できる（せいけいできる） |
| Passive | 成形される（せいけいされる） |
| Causative | 成形させる（せいけいさせる） |
| Causative passive | 成形させられる（せいけいさせられる） |
| Conditional (ba) | 成形すれば（せいけいすれば） |
| tara | 成形したら（せいけいしたら） |
| Volitional | 成形しよう（せいけいしよう） |
| polite (mashou) | 成形しましょう（せいけいしましょう） |
| Imperative | 成形しろ（せいけいしろ） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Synonyms & antonyms
- Synonym形作るかたちづくるNeutralA verb for forming or shaping something into a definite form — concrete shapes or abstract things, as in 「人格を形作る」; 「成形」 leans toward processed products.
- Synonym形成けいせいWrittenWritten word for a form taking shape — terrain, organizations, or abstract things like personality and society; also plastic surgery. 「成形」 is about shaping products.
- Related作り出すつくりだすNeutralA verb for creating or producing, stressing that something new is brought into being from nothing.
- Related作るつくるNeutralThe everyday all-purpose verb for making or producing; it does not highlight shaping the material into a form the way 「成形」 does.
- Related製作せいさくNeutralManufacturing items with tools or machines; also production of films and shows. 「成形」 refers specifically to the step of giving something its shape.
- Related作製さくせいWrittenWritten-style word for producing documents, charts, samples and the like, with the nuance of making something to specification.
- Related作り上げるつくりあげるNeutralA verb for making something to completion; can also mean fabricating or inventing things. Stresses the final finished result.
- RelatedこしらえるCasualColloquial verb for making or preparing something, stressing that you make it with your own hands.
- Related組み立てるくみたてるNeutralA verb for assembling: fitting parts together into a whole, rather than shaping material as 「成形」 does.
- Related仕立てしたてNeutralTailoring and sewing, especially having clothes made to order; also special preparation or arrangements.
- Related製するせいするWrittenWritten, rather rare verb for manufacturing; in modern usage 「製造する」 is normally said instead.
Use 「成形」 for pressing or casting material into a set shape, as in 「射出成形」; it is also written 「成型」. When a form simply comes into being, say 「形成」; for everyday making, 「作る」; for putting parts together, 「組み立てる」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese definitions
Kanji in this word
See also
