kingly
Like a king in dignity, greatness, or impressive style.
Kingly describes someone or something that resembles, belongs to, or is worthy of a king. A person with a kingly bearing walks with confidence and dignity, commanding respect without demanding it. A kingly feast might include elaborate dishes served on fine plates, the kind of meal you'd imagine in a castle's great hall.
The word suggests the noble qualities people associate with great rulers: generosity, wisdom, fairness, and natural authority. When you call someone's behavior kingly, you mean they show these qualities in their actions. A teacher might have a kingly presence in the classroom, earning genuine respect through wisdom and fairness rather than through strictness. An athlete might make a kingly gesture by helping a fallen opponent stand up.
You can also use kingly to describe physical things that seem fit for royalty. A kingly robe might be made of rich velvet trimmed with gold. A kingly throne would be large, ornate, and impressive. The word queenly works the same way for queens, carrying similar dignity. Both words capture that combination of grace, authority, and excellence that makes someone seem naturally suited to leadership.