Baroque /bəˈroʊk/ noun 

Definition:  The word baroque has several meanings:

• A gem that is shaped irregularly
• A term that emphasizes extravagance, flamboyance, or the grotesque
• Most commonly, it describes a popular style of art and architecture that became prevalent in Europe in the 17th century. The characteristics of baroque artwork and design include high levels of ornamentation and embellishment, as well as complicated forms, curving lines, bold colors, and contrast. The combination was very effective at the goal of conveying movement and drama to inspire awe in the viewer.

Etymology:  The origins of the word baroque are believed to be either the French word barroque, or the Portuguese barroco, both of which refer to an irregularly shaped pearl

In a Sentence

The necklace is made from a number of baroque pearls.

Some of the most beautiful churches were designed and decorated in baroque style.

The bold use of elaborate gilding in that painting indicates its baroque influences.

Synonyms 

Lavish, Excessive

Antonyms 

Reasonable, Moderate