危(あぶ)ない

あぶない
i-adjective
dangerous
descriptive
Conjugation
AffirmativeNegative
Present危(あぶ)ない危(あぶ)なくない
Past危(あぶ)なかった危(あぶ)なくなかった
て form危(あぶ)なくて危(あぶ)なくなくて
Adverbial危(あぶ)なく—
Conditional ば危(あぶ)なければ危(あぶ)なくなければ
Conditional たら危(あぶ)なかったら危(あぶ)なくなかったら
1. dangerous, hazardous
Involving or causing risk of harm or injury.
ここは危(あぶ)ないです。
This place is dangerous.
危(あぶ)ない!車(くるま)が来(き)ます!
Watch out! A car is coming!
Used as a warning exclamation
Walking alone at night is dangerous.
Knives are dangerous, so please be careful.
The children were playing near the river, and I thought it was dangerous. I stopped them right away.
2. risky, precarious
Uncertain or unstable, potentially leading to a bad outcome.
その考(かんが)えは危(あぶ)ないです。
That idea is risky.
This plan might be risky.
I think that approach is risky.
I almost failed the test, but I somehow passed.
Meaning: was close to failing
My current company might be in trouble. I think I should look for a new job.

危(あぶ)ない is an い-adjective meaning dangerous or risky. Often used as a warning exclamation.

USAGE (exclamation):
危(あぶ)ない! (Watch out! Danger!) — used to warn someone of immediate danger.

Common patterns

  • 危(あぶ)なく〜するところだった (almost did something bad / had a close call)

Example: 危(あぶ)なく遅刻(ちこく)するところだった (I was almost late)

  • 危(あぶ)ないから〜 (because it's dangerous...)
  • 〜のは危(あぶ)ない (doing ~ is dangerous)

USAGE (sense 2, risky):
Used for unstable situations: 会社(かいしゃ)が危(あぶ)ない (the company is in trouble), テストが危(あぶ)なかった (the test was a close call).

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