徐行|じょこうjokou[0]heiban (flat)

JLPT N1approx.Common
Definitions
  1. noun, suru verb, intransitive verbgoing slowly (esp. to enable a vehicle to stop immediately); going at a reduced speed; slowing down; reducing speed
    車くるまに徐行じょこうするようにと合図あいずした。↗
    I signaled the car to go slow.
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.

Synonyms & antonyms
  • 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

Japanese definitions
  1. 車くるまなどがゆっくりと進すすむこと。
  2. (日本にっぽん国こく道路交通法どうろこうつうほうの定義ていぎ)「車両しゃりょう等とうが直ただちに停止ていしすることができるような速度そくどで進行しんこうすること」
  3. ゆっくりと、おもむろに歩あるき、あるいは進すすむこと。
Kanji in this word
See also

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

Say it right, write it right

Core lookup works fully offline, with cloud pronunciation and one-tap save & review. Free, no sign-up.

Free downloadWindowsFree downloadmacOSDownload on the App StoreGet it on Google Play
MobileiOS / Android

Android

QR code for the Google Play pageGet it on Google Play

Scan it with your Android phone to install, or search for “Tomoshi” on Google Play.

iOS

QR code for the App Store pageDownload on the App Store

Scan it with your iPhone camera to install, or search for “Tomoshi” in the App Store.

Install the browser extensionLook words up on any web page · Chrome / Edge / Safari

Screenshot of a Tomoshi lookup resultScreenshot of Tomoshi lookup results on a phone

Windows macOS Chrome / Edge / Safari extension iOS / Android