Here are some other options, depending on the context:
* Identity-based: emphasizes the nature of something being defined by identity.
* Identifying: relates to the act of identifying something.
* Personal: refers to an individual's unique identity.
* Collective: refers to the shared identity of a group.
* Cultural: relates to the cultural identity of a group.
* National: refers to the national identity of a person or group.
The best choice will depend on the specific meaning you want to convey.