Which word describes something that is original, new, or different?

The word "novel" accurately describes something that is original, new, or different. In this context, "novel" specifically conveys the idea of being unique or innovative, setting it apart from the usual or traditional. This term is often used in various fields, such as literature or science, to describe ideas, creations, or solutions that break new ground or introduce new concepts.

The other words do not convey this meaning. "Vociferous" refers to being loud or outspoken, often in expressing opinions or demands. "Arrogance" denotes an attitude of superiority or overconfidence, typically lacking a connection to originality or novelty. "Utility" involves usefulness or practicality, which does not directly relate to being new or original.