This is the 4985th most frequent Turkish word.
geçersiz
Invalid.
In this sentence, 'geçersiz' refers to the document not being recognized or having lost its validity.
Bu belge artık geçersizdir.
This document is no longer valid.
Here, 'geçersiz' is used to describe a code being invalid due to incorrect input or rules.
Şifre yanlış, bu kod geçersiz.
The password is incorrect; this code is invalid.
In this context, 'geçersiz' describes the agreement as having lost its validity due to cancellation.