早い・速い・疾い・捷い|はやいhayai[2]nakadaka (mid-high)
This browser can't play pronunciations (needs Safari 18.4 or later, or Chrome / Edge / Firefox).
- i-adjectivefast; quick; rapid; swift; speedy; brisk; promptesp. 速い
- i-adjectiveearly; soon; earlier than usual
- i-adjectivepremature; too soon; too early
- i-adjectiveeasy; simple; quick; fastesp. 早い
- i-adjectiveas soon as ...; the moment ...; the instant ...as ...するが早いか or ...するより早く
Conjugation
| Plain form | 早い(はやい) |
|---|---|
| Polite (desu) | 早いです(はやいです) |
| Negative (kunai) | 早くない(はやくない) |
| polite (ku arimasen) | 早くありません(はやくありません) |
| Past (katta) | 早かった(はやかった) |
| Past negative (kunakatta) | 早くなかった(はやくなかった) |
| Te form (kute) | 早くて(はやくて) |
| Adverbial (ku) | 早く(はやく) |
| Conditional (kereba) | 早ければ(はやければ) |
| kattara | 早かったら(はやかったら) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym素早いすばやいNeutralFor nimble movements or reactions, as in 「素早く逃げる」; stresses split-second response. Unlike 「早い」, it does not mean early in time.
- Synonym速やかすみやかWrittenWritten word for handling things promptly, as in 「速やかに対応する」; common in announcements and instructions.
- Synonym迅速じんそくWrittenFor swift handling or action, as in 「迅速な対応」; more formal than 「早い」.
- Synonym手っ取り早いてっとりばやいCasualColloquial: getting results quickly with little effort, as in 「手っ取り早い方法」; stresses ease and convenience.
- Synonym手早いてばやいNeutralWorking quickly and deftly, as in 「手早く片付ける」; focuses on brisk, skillful hands at a task.
- SynonymスピーディーNeutralLoanword for speed and efficiency; common in service and business promotion.
- Synonym急速きゅうそくNeutralFor rapid change or development, as in 「急速に成長する」; describes processes.
- Synonym敏速びんそくWrittenWritten word for quick, agile movement; rare in everyday speech.
- Synonym快速かいそくNeutralHigh speed; also rapid trains in Japan, as in 「快速電車」.
- Synonym敏捷びんしょうWrittenWritten word for agile, nimble movement, as in 「敏捷な動き」.
- Related機敏きびんNeutralAlert and quick to adapt, as in 「機敏に動く」; stresses fast judgement.
- Related早急そうきゅうWrittenFor matters needing urgent action, as in 「早急に対処する」; common in official writing and more solemn than 「早い」.
- Related高速こうそくNeutralHigh speed; also the highway, as in 「高速道路」. Mostly used before nouns.
- Related大急ぎおおいそぎNeutralIn a great rush, as in 「大急ぎで準備する」; describes the state of hurrying.
- Related早めはやめNeutralA little earlier than planned, as in 「早めに出る」; stresses being slightly ahead of schedule.
- Related手ばしこいてばしこいCasualColloquial for quick, deft hands and feet; not much used.
- RelatedはしっこいCasualColloquial for sharp, nimble movement; usually read 「はしっこい」 and slightly dialectal.
- Related神速しんそくWrittenWritten word for godlike speed; very rare.
- RelatedすばしっこいCasualColloquial for nimble, quick movement; often said of children and small animals.
- Related簡捷かんしょうWrittenWritten word for quick and simple; very rare.
- Antonym遅いおそいNeutralThe antonym of 「早い」: slow in speed or late in time.
「早い」 covers both fast and early; for speed, the spelling 「速い」 is more common. For nimble movement use 「素早い」; for prompt handling 「迅速」 or 「速やかに」; for slightly ahead of schedule 「早め」; for urgency 「早急」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


