Royal  —adj. 1 of, suited to, or worthy of a king or queen. 2 in the service or under the patronage of a king or queen. 3 of the family of a king or queen. 4 majestic, splendid. 5 exceptional, first-rate (had a royal time). —n. Colloq. Member of the royal family.  royally adv. [latin: related to *regal]