動き出す・動きだす|うごきだすugokidasu[4]nakadaka (mid-high)

Common
Which spelling to use
動き出す動き出す is the most common written form and the recommended default for beginners. Use it when writing the expression.
動きだす動きだす is a less common written variant. You may encounter it, but beginners should choose 動き出す instead.
Definitions
  1. godan verb, intransitive verbto start to move; to get going; to come alive
    Hold on to the strap. The train will start to move soon.
Conjugation
Dictionary form動き出す(うごきだす)
Polite (masu)動き出します(うごきだします)
Negative (nai)動き出さない(うごきださない)
polite (masen)動き出しません(うごきだしません)
classical zu / nu動き出さず・動き出さぬ(うごきださず・うごきださぬ)
Past (ta)動き出した(うごきだした)
polite (mashita)動き出しました(うごきだしました)
Past negative (nakatta)動き出さなかった(うごきださなかった)
polite (masen deshita)動き出しませんでした(うごきだしませんでした)
Te form動き出して(うごきだして)
Potential動き出せる(うごきだせる)
Passive動き出される(うごきだされる)
Causative動き出させる(うごきださせる)
Causative passive動き出させられる(うごきださせられる)
Conditional (ba)動き出せば(うごきだせば)
tara動き出したら(うごきだしたら)
Volitional動き出そう(うごきだそう)
polite (mashou)動き出しましょう(うごきだしましょう)
Imperative動き出せ(うごきだせ)

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

Synonyms & antonyms
  • Synonym始動しどうNeutralStarting something up, as in 「エンジンを始動」 or 「計画が始動」; leans formal.
  • Synonym着手ちゃくしゅNeutralSetting to work on a task, as in 「工事に着手する」; the focus is on beginning the work itself, not on things starting to move.
  • Related作動するNeutralFor machines operating or being triggered, as in 「警報が作動する」; technical in tone, and never used for a person starting to act.
  • Related稼働するNeutralFor equipment going into operation, as in 「工場が稼働する」; the emphasis is on running in production, not on starting to move.
  • Antonym止まるとまるNeutralTo stop or come to a halt — the opposite of 「動き出す」, which is about something beginning to move.
  • Antonym静止するNeutralTo stay motionless — the opposite of 「動き出す」 coming alive and getting going.

Use 「動き出す」 for something starting to move or a situation starting to move, as in 「電車が動き出す」「事態が動き出す」. For starting a machine pick 「始動」, and for getting started on work pick 「着手」; 「作動する」 and 「稼働する」 are for machinery and equipment in operation.

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

Japanese definitions
  1. 今いままで動うごきのなかったものが動うごきを見みせ始はじめること。
Kanji in this word

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