1. magnificent Royal denotes that which actually belongs or pertains to a monarch; the royal residence is that which the king occupies, royal raiment that which the king wears. Regal denotes that which in o Synonyms: royal, august, kingly, majestic, princely, kinglike, magnificent, munificent, regal Antonyms: beggarly, contemptible, mean, poor, servile, slavish, vile