palatial
UK: pəˈleɪʃəl | US: pəˈleɪʃəl
adj. resembling or suitable for a palace; grand and magnificent
The word "palatial" derives from the Latin root "palatium," referring to the Palatine Hill in Rome, where emperors built their lavish residences. Over time, "palatium" came to mean "palace" in Late Latin, and the suffix "-ial" (from Latin "-ialis") was added to form the adjective "palatial," meaning "of or like a palace." The term captures the opulence and grandeur associated with royal dwellings.
The billionaire's palatial mansion overlooked the ocean.
The hotel suite was decorated with palatial elegance.
They hosted the gala in a palatial ballroom.
The museum's palatial architecture impressed visitors.
Her wedding reception was held in a palatial venue.