Extremely lavish, splendid, and gorgeous; richly decorated and eye-catching (four-character idiom), often used to describe ceremonies, buildings, or costumes.
式場は豪華絢爛な装飾で飾られていた。
The venue was decorated in a lavish and gorgeous manner.
時代劇の衣装は豪華絢爛で目を引く。
The costumes in period dramas are sumptuous and striking.
宮殿の内部は豪華絢爛そのもので、観光客を驚かせた。
The interior of the palace was nothing short of magnificent, astonishing the tourists.