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JLPT N3 · Degree & extent

決(けっ)して~ない (kesshite~nai)

決して~ない — never ~

In short · An adverbial phrase for firm denial or resolve. 決して is always paired with a negative and means 'absolutely not.' It is used for resolutions, promises and firm statements.
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Pattern

  • 決して+V/Aの否定形 決して + negative form

Meaning

決して~ない denies without exception. 決して忘れない and 決して諦めない show firm resolve, while 決して悪い人ではない and 決して簡単ではない strongly deny an evaluation.

Compared with similar words

A little more formal than 絶対に~ない. 全然~ない and 少しも~ない say that there is none at all; 決して stresses resolve or the strength of a claim. A prohibition form 決して~な also exists.

Examples

  • この約束(やくそく)は決(けっ)して忘(わす)れない。

    Kono yakusoku wa kesshite wasurenai.

    I will never forget this promise.

  • この恩(おん)は決(けっ)して忘(わす)れません。

    Kono on wa kesshite wasuremasen.

    I will never forget this kindness.

  • 一度(いちど)した約束(やくそく)は決(けっ)して破(やぶ)らない。

    Ichido shita yakusoku wa kesshite yaburanai.

    I will never break a promise once I've made it.

Common mistakes

  • Always use it with a negative. 決して行く is wrong.
  • It is awkward for a single past event; 決して行かなかった often sounds unnatural.

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