unlabeled

adjective
UK /ʌnˈleɪbəld/
US /ʌnˈleɪbəld/

Something unlabeled does not have a name or sticker on it to tell you what it is.

The box was unlabeled, so we did not know what was inside.


OTHER MEANINGS

2. Not marked with a brand or company name.

She bought unlabeled cans at the discount store.

3. In science, not marked with a radioactive or chemical tracer.

The unlabeled sample was used as a control in the experiment.

4. In computing, data that has not been given a category or tag for training.

The model learned from a large set of unlabeled photos.