Having the quality of permitting or giving permission; that allows something to be done or to happen. Of a law, piece of legislation, etc…

Originally: free from physical obstruction or hindrance; unrestricted. Later more usually: unconstrained, natural, unaffected; informal, relaxed…

Of a law, act, etc.: that permits or allows something, rather than being preventative or restrictive; expressive of natural rights; = permissive, adj.…

Of enactments, etc.: Conveying a ‘faculty’ or permission; permissive as opposed to compulsory; hence of actions, conditions, etc.: Optional.

That permits or gives permission; = permissive, adj. 2.

Tending to toleration; permissive.