* Allowed: This is a direct opposite, meaning something is permitted.
* Permitted: Similar to allowed, this implies permission is granted.
* Legal: This suggests something is not against the law.
* Acceptable: This means something is considered appropriate or satisfactory.
* Free: This implies there are no restrictions or limitations.
* Open: This suggests something is not closed off or inaccessible.
* Welcomed: This implies something is desired or encouraged.
The best word to use will depend on the specific situation you are describing.