taru-adjective, na-adjective, noun which may take the genitive case particle 'no'
luxurious and gorgeous; magnificent; dazzlingly splendid
Describes something overwhelmingly luxurious, brilliant, and beautiful, often with a sense of dazzling excess. Used for decor, attire, ceremonies, and visual spectacles.
その宮殿は豪華絢爛たる装飾で飾られていた。
The palace was adorned with luxurious and gorgeous decorations.
彼女のドレスは豪華絢爛で、誰もが目を奪われた。
Her dress was so dazzlingly splendid that everyone was captivated.