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ずにはおかない

Will definitely cause / Will inevitably bring about (a certain result)

This grammar expresses that an action, situation, or factor will unavoidably lead to a strong result, often an emotional reaction or serious consequence.

N1

Meaning

Will definitely cause / Will inevitably bring about (a certain result)

This grammar expresses that an action, situation, or factor will unavoidably lead to a strong result, often an emotional reaction or serious consequence.

Formation

Formal
Writing Only
Verb (ない-form → ず) + にはおかない

Explanation

ずにはおかない is used to state that something has such strong power or influence that it cannot help but cause a certain outcome.

Core idea:

  • “X is so strong that it will certainly cause Y”

  • “Y is unavoidable once X happens”

Important characteristics:

  • The result will happen naturally

  • No human decision is needed

  • The speaker shows strong confidence in the outcome

Very commonly, the result is:

  • emotional (shock, anger, sadness, admiration)

  • social (criticism, outrage)

  • psychological impact

This grammar is:

  • formal

  • written

  • frequently used in:

    • news reports

    • editorials

    • analytical writing

    • JLPT N1 reading passages