What is a synonym for kingly?

Here are some synonyms for "kingly", depending on the specific nuance you want to convey:

General:

* Regal

* Royal

* Majestic

* Grand

* Noble

* Sovereign

* Imperial

* Princely

* Illustrious

Specific aspects of "kingly":

* Power: Powerful, dominant, authoritative

* Appearance: Stately, imposing, dignified

* Behavior: Magnanimous, generous, benevolent

* Character: Brave, courageous, honorable

The best synonym will depend on the context of your sentence.