精通|せいつうseitsuu[0]heiban (flat)

Common
Definitions
  1. noun, suru verb, intransitive verbbeing well versed (in); being well acquainted (with); being familiar (with); having a thorough knowledge (of); being an authority (on)
    彼かれは英語えいごに精通せいつうしている。↗
    He is quite at home in English.
  2. noun, suru verb, intransitive verb(a boy's) first ejaculation; spermarche; semenarche
Conjugation
Dictionary form精通する(せいつうする)
Polite (masu)精通します(せいつうします)
Negative (nai)精通しない(せいつうしない)
polite (masen)精通しません(せいつうしません)
classical zu / nu精通せず・精通せぬ(せいつうせず・せいつうせぬ)
Past (ta)精通した(せいつうした)
polite (mashita)精通しました(せいつうしました)
Past negative (nakatta)精通しなかった(せいつうしなかった)
polite (masen deshita)精通しませんでした(せいつうしませんでした)
Te form精通して(せいつうして)
Potential精通できる(せいつうできる)
Passive精通される(せいつうされる)
Causative精通させる(せいつうさせる)
Causative passive精通させられる(せいつうさせられる)
Conditional (ba)精通すれば(せいつうすれば)
tara精通したら(せいつうしたら)
Volitional精通しよう(せいつうしよう)
polite (mashou)精通しましょう(せいつうしましょう)
Imperative精通しろ(せいつうしろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Synonym熟知じゅくちNeutralVery close to 「精通」: knowing a matter thoroughly, as in 「事情を熟知する」. 「熟知」 stresses knowing the facts clearly, while 「精通」 stresses command of a whole field.
  • Related熟練じゅくれんNeutralSkilled technique, as in 「熟練工」. It stresses hands-on proficiency, while 「精通」 stresses thorough knowledge of a subject.
  • Related習熟しゅうじゅくWrittenWritten-style word for becoming proficient through practice, as in 「操作に習熟する」; it stresses skill built up step by step.
  • Related熟達じゅくたつWrittenProficiency carried to the level of 「精通」; used relatively rarely and leaning to written or formal prose.
  • Antonym無知むちNeutralAntonym: lacking knowledge. It is the opposite of 「精通」 in the sense of being well versed in something.
  • Antonym未熟みじゅくNeutralAntonym: immature or not yet skilled; the opposite of 「精通」 as fully mastered expertise.

Use 「精通」 for deep command of a field, as in 「法律に精通する」. For hands-on skill say 「熟練」, for knowing a matter clearly 「熟知」; 「習熟」 and 「熟達」 are written-style words for proficiency gained by practice. Opposites: 「無知」 (ignorance) and 「未熟」 (immaturity).

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. ある物事ものごとに関かんしてして、詳くわしい所ところまで知しっていること。
  2. (医学いがく・発達はったつ医学いがく)男性だんせいが性的せいてきに成熟せいじゅくしていく過程かていで生うまれて初はじめて射精しゃせいを経験けいけんすること。
Kanji in this word
See also

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