Ceremonial (adjective)

1. Relating to or used in ceremony; formal or grand in a way that is appropriate for special occasions.
2. Of or relating to a ceremony or ceremonies.

Origin:

Late 16th century, from latin caerimonia, from caerimoniae ("religious rites") + -al.

Examples:

1. The ceremonial dinner was a grand event, with guests dressed in their finest attire.
2. The ceremonial flag was presented with great dignity and respect.
3. The ceremonial sword was passed down from generation to generation.
4. The ceremonial ground-breaking was a significant event for the city.
5. The ceremonial parade was a grand celebration of the country's independence.