Как по Английски будет niet geslaagd

adjective

Failing to produce the intended result.

Примеры использования:

The rebel officers who led the abortive coup were shot

adverb

In a way that fails to accomplish a desired aim or result.

Примеры использования:

I have tried unsuccessfully to secure a mortgage

adjective

Not successful.

Примеры использования:

An unsuccessful attempt to enter parliament

adjective

Unlucky, inauspicious, or dangerous.

Примеры использования:

It would be indefensible, and even perhaps unchancy, to let him pay

adjective

Not passed.