This is the 9908th most frequent Polish word.
anonimowy
Anonymous.
Used to describe someone whose identity is not revealed or known.
Autor listu zdecydował się pozostać anonimowy.
The author of the letter decided to remain anonymous.
Used to describe someone providing something without revealing their identity.
Anonimowy dawca przekazał dużą sumę pieniędzy na cele charytatywne.
An anonymous donor donated a large sum of money to charity.
Used to describe participants whose identities are not linked to their responses for confidentiality.