危険(きけん)

きけん
na-adjective, noun
dangerous, danger
descriptiveevaluationabstract
See also: 棄権(きけん) (abstention, withdrawal)
1. dangerous, risky
Involving or exposing to risk or harm.
ここは危険(きけん)です。
It's dangerous here.
危険(きけん)な場所(ばしょ)には行(い)かないでください。
Please don't go to dangerous places.
危険な + noun
この道(みち)は夜(よる)になると危険(きけん)なので、気(き)をつけてください。
This road becomes dangerous at night, so please be careful.
危険(きけん)な運転(うんてん)はやめてください。
Please stop driving dangerously.
危険(きけん)な動物(どうぶつ)がいる。
There are dangerous animals here.
2. danger, risk (noun)
The possibility of suffering harm or injury.
危険(きけん)を感(かん)じた。
I sensed danger.
Used as a noun
命(いのち)の危険(きけん)を冒(おか)してまで助(たす)けに行(い)った彼(かれ)は本当(ほんとう)に勇敢(ゆうかん)だ。
He was truly brave to go help despite risking his life.
危険(きけん)を冒(おか)す価値(かち)がある。
It's worth the risk.
危険(きけん)から逃(に)げた。
I escaped from danger.
危険(きけん)に気(き)づかなかった。
I didn't notice the danger.

危険(きけん) works both as a na-adjective and as a noun.

COMMON PATTERNS (as na-adjective):

COMMON COLLOCATIONS (as noun):

Register: More formal and written than 危(あぶ)ない. Signs, warnings, and official notices use 危険(きけん)；everyday spoken warnings use 危(あぶ)ない. The bare sign 危険(きけん)！means 'Danger!'

Similar words

Related Words

Antonym: 安全(あんぜん) (safe)
Related: 危(あぶ)ない (dangerous (plain, spoken))
Related: 危険性(きけんせい) (riskiness, degree of danger)
Related: リスク (risk (loanword))
Compare: 危機(きき) (crisis)
Compare: 有害(ゆうがい) (harmful, noxious, toxic)
Compare: 脅威(きょうい) (threat)
Compare: リスキー (risky)
core
Added 2026.1.7 21:39 · Revised 2026.10.9 4:33
01000/01141_kiken