Unlike the national political conventions, the plotlines of New York conventions are largely unwritten.
The music is largely unwritten, and is passed from master to student through oral tradition only.
The past is dead, bladesman, the future largely unwritten.
And also, I think something that seems to be largely unwritten about, is Jimmy Anderson's performances.
The Roman constitution was not formal or even official, largely unwritten and constantly evolving.
The problem in Nascar is that the rules of etiquette on the racetrack remain largely unwritten.
Its constitution was largely unwritten, and was constantly evolving throughout the life of the Republic.
There remains another religious history that those early Christian historians left largely unwritten.
The web is nothing but a system, a bunch of (largely unwritten) rules regarding search, linking, promotion, etc.
The constitution was largely unwritten and uncodified, and evolved over time.