Utterly new, as new as possible.
Newly created.
Pioneering.
First in a series of copies or versions.
Having a specified place or time as its origin.
Fresh, different.
Relating to the origin or beginning; preceding all others.
A ridgeling.
An object or other creation (e.g. narrative work) from which all later copies and variations are derived.
A newly designed garment released by a fashion designer as part of a collection.
A person with a unique and interesting personality or creative talent.