いけない

expressions (phrases, clauses, etc.)

wrong; not good; of no useword usually written using kana alone
hopeless; past hopeword usually written using kana alone
must not doword usually written using kana alone

Forms

いけない
行けない【いけない】

Generated definitions (experimental)

wrong; not good; of no use

This meaning is used to describe something that is incorrect, inappropriate, or not suitable in a certain context.

。

That is completely wrong.

。

That behavior is not good.

hopeless; past hope

This usage conveys a sense of despair or futility, indicating that a situation has become irretrievable or beyond remedy.

。

This situation is already hopeless.

。

I felt that his plan was past hope.

must not do

Here, the word implies prohibition or something that is not allowed or advised, often in a moral or legal context.

。

You must not do that here.

。

You must not lie to her.

Generated collocations (experimental)

to do something wrongto know it's wronghopeless situationit’s already no useto feel that something is wronga reason not to do somethingwrongful actabsolutely must notbecame impossibleto think about something wrong