regal
adj.adj. looking or acting like a king or queen. You use this to describe someone who is very impressive, calm, and dignified.
adj. resembling or fit for a monarch, especially in being magnificent or dignified. Often used to describe physical appearance, posture, or musical compositions that sound grand and formal.
She walked into the room with a regal posture.
The actress gave a regal performance, capturing the grace and authority of the historical queen she portrayed.
The symphony opened with a regal brass fanfare that immediately established a sense of historical importance and architectural grandeur within the concert hall.
From Middle English regal, from Old French regal (“regal, royal”), from Latin rēgālis (“royal, kingly”), from rex (“king”); also regere (“to rule”). Doublet of royal (“belonging to a monarch”), real (“unit of currency”), ariary, and riyal. Cognate with Spanish real.
From Middle English regal, from Middle French régale, possibly from Old French regol (“a gutter, channel”). Doublet of rail, regula, rigol, and rule.
Typically used attributively before a noun or predicatively after a linking verb like 'look' or 'seem'.