What is a synonym for Legitimate?

Here are some synonyms for "legitimate," depending on the context:

General:

* Valid

* Authentic

* Genuine

* Lawful

* Legal

* Rightful

* Proper

* Justified

* Real

* True

In terms of business:

* Established

* Reputable

* Credible

* Trustworthy

In terms of inheritance:

* Heir

* Successor

In terms of theatre:

* Professional

* Official

The best synonym will depend on the specific situation and the nuance you want to convey.