Wortnetzwerk: c'est frustrant

échec

The omission of success.

A2

déception

Primary meaning: disappointment (same meaning).

A2

frustrer

To prevent (someone) from accomplishing a purpose or fulfilling a desire.

B1

impuissance

The state of being unable to take effective action; helplessness.

B1

frustré

Feeling annoyed or upset because you cannot do or achieve something.

A2