すごい

すごい
i-adjective
amazing, incredible
informalevaluation
See also: すげー (casual variant)
Conjugation
AffirmativeNegative
Presentすごいすごくない
Pastすごかったすごくなかった
て formすごくてすごくなくて
Adverbialすごく
Conditional ばすごければすごくなければ
Conditional たらすごかったらすごくなかったら
1. amazing, incredible, awesome
Expressing that something is impressive, remarkable, or extraordinary. Very commonly used in casual conversation.
Amazing! You're so good at it.
Common exclamation
There are so many people!
Meaning 'a lot' or 'extreme'
あの映画(えいが)すごかった。
That movie was amazing.
She has an incredible talent for languages—apparently she can speak five languages.
すごい景色(けしき)
What an amazing view!
2. terrible, dreadful
Originally meant something frightening or extreme (can still be used this way).
The typhoon winds were terrible, so we couldn't go outside. Apparently several trees fell over too.
Uses sense 2: terrible/dreadful
The rain is so bad I can't go out.
There was a terrible noise—what was that?
渋滞(じゅうたい)すごかった。
The traffic jam was terrible.
すごい(あつ)
The heat is intense.

Usage

すごい has two core meanings — (1) amazing, impressive (positive) and (2) terrible, extreme (negative) — and context alone decides which is meant. What both share is that the speaker is struck by the sheer degree of something, whether that degree is welcome or not. Sense 2 attaches naturally to nouns for unpleasant conditions: (あめ), 渋滞(じゅうたい), (おと).

Forms

  • すごくない (negative)
  • すごくて (te-form)
  • すごかった (past)
  • Adverbial すごく: very, extremely
  • The kanji (すご)い exists but hiragana is far more common

As an intensifier

すごく is an everyday intensifier: すごくおいしい (very delicious), すごく(さむ) (extremely cold). In casual speech すごい is often used in that adverbial slot instead of すごく (すごいおいしい). Learners will hear this constantly, but it is non-standard and should be avoided in writing.

Casual variants

  • すげー / すげえ: rough, mostly masculine slang
  • すっごい: emphatic, with the doubled consonant carrying the emphasis

Similar words

  • 素晴(すば)らしい: wonderful — positive only, and more formal; safe in writing where すごい is not
  • ひどい: terrible — negative only, and about badness rather than degree
  • やばい: the younger-generation equivalent, likewise both positive and negative, but far more casual

Register

Informal. One of the most frequent exclamations in spoken Japanese, but in formal writing 素晴(すば)らしい or a more specific adjective is preferred.