The term 'highly ornate' can be described by the 6-letter word 'ROCOCO'. ROCOCO is an artistic style that originated in France in the 18th century and is characterized by intricate and elaborate designs, often with asymmetrical shapes. It is known for its use of pastel colors, curved lines, and motifs of nature such as shells and flowers. ROCOCO art is highly ornate and decorative, making it a perfect fit for the term.