Hi @Austin_DaCunha, the name should match the field name you put in your serverside config file, which is also the api name (in this case, if “keywords” ).
The hiddenFields property accepts an array of strings, so it would need to be hiddenFields:['keywords'] – if that doesn’t work, feel free to post your json config file here and we can further troubleshoot. Also note if you are overriding and you’d still like builtin.entityType hidden, you need to include that explicitly, hiddenFields:['keywords', 'builtin.entityType']