nieuznawana
Nieuznawana is the feminine singular form of the Polish adjective nieuznawany, meaning not recognized or unacknowledged. It is used to describe a subject that has not received official recognition or acceptance by authorities, institutions, or the wider public. The word is built from the verb uznać (to recognize, acknowledge) with the negation prefix nie- and the feminine ending -ana, so it agrees with feminine nouns (for example, nieuznawana organizacja, nieuznawana instytucja). It can function attributively or predicatively, as in ta organizacja jest nieuznawana przez państwo.
The related noun nieuznanie denotes the act or process of not recognizing, while uznanie means recognition
In contemporary usage, nieuznawana can also describe individuals or proposals whose legitimacy, credentials, or claims are