徐行|じょこうjokou[0]heiban (flat)
This browser can't play pronunciations (needs Safari 18.4 or later, or Chrome / Edge / Firefox).
- noun, suru verb, intransitive verbgoing slowly (esp. to enable a vehicle to stop immediately); going at a reduced speed; slowing down; reducing speed
Conjugation
| Dictionary form | 徐行する(じょこうする) |
|---|---|
| Polite (masu) | 徐行します(じょこうします) |
| Negative (nai) | 徐行しない(じょこうしない) |
| polite (masen) | 徐行しません(じょこうしません) |
| classical zu / nu | 徐行せず・徐行せぬ(じょこうせず・じょこうせぬ) |
| Past (ta) | 徐行した(じょこうした) |
| polite (mashita) | 徐行しました(じょこうしました) |
| Past negative (nakatta) | 徐行しなかった(じょこうしなかった) |
| polite (masen deshita) | 徐行しませんでした(じょこうしませんでした) |
| Te form | 徐行して(じょこうして) |
| Potential | 徐行できる(じょこうできる) |
| Passive | 徐行される(じょこうされる) |
| Causative | 徐行させる(じょこうさせる) |
| Causative passive | 徐行させられる(じょこうさせられる) |
| Conditional (ba) | 徐行すれば(じょこうすれば) |
| tara | 徐行したら(じょこうしたら) |
| Volitional | 徐行しよう(じょこうしよう) |
| polite (mashou) | 徐行しましょう(じょこうしましょう) |
| Imperative | 徐行しろ(じょこうしろ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Related減速げんそくNeutralAn objective noun for a drop in speed. 「徐行」 stresses keeping a low speed at which the vehicle can stop at any moment.
- RelatedスローダウンNeutralLoanword for slowing the pace; also used for economic slowdowns. 「徐行」 is specifically about slow movement in traffic.
- RelatedスピードダウンNeutralWasei-eigo for reducing speed, common in everyday speech; 「徐行」 is the more formal wording seen on traffic signs.
- Relatedのろのろ進むNeutralDescribes crawling along slowly, often with a hint of impatience; 「徐行」 is a vehicle deliberately going slowly enough to stop at any moment.
Use 「徐行」 for a vehicle slowing to a speed that lets it stop at any moment, as in 「徐行運転」 and 「徐行区間」. For deceleration in general use 「減速」; in casual speech 「スピードダウン」; for an economic slowdown 「スローダウン」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


