* Exclusive: This is the most direct opposite, meaning to exclude or shut out.
* Restrictive: This suggests a limitation or constraint on participation.
* Discriminatory: This implies a bias or unfair treatment against certain groups.
* Segregated: This refers to the separation of groups based on specific characteristics.
* Limited: This means restricted in scope or availability.
The best antonym to use will depend on the specific situation and the intended meaning.