royal
US /ˈrɔɪ.əl/
UK /ˈrɔɪ.əl/

1.
of or relating to a king or queen or members of their family
:
•
The royal family attended the ceremony.
•
She received a royal invitation.
2.
of a quality or size suitable for a king or queen; magnificent
:
•
They gave us a royal welcome.
•
The feast was a truly royal affair.