A scrupulous guardian of the Senate's written rules, he disdained its unwritten customs and practices.

The strangeness of the Barrayaran government system, with all its unwritten customs, pressed on Cordelia not so much at first glance, but gradually.

That touched off a discussion about the role of unwritten custom in government.

Constitutional conventions are unwritten political customs which aid the smooth operation of the government.

Often the word refers to unwritten customs shared throughout a community.

At present, unwritten custom or practice calls for detention in certain circumstances.

It would be considered an affront to unwritten customs.

They know the unwritten custom and practice which form such an important part of industrial relations.

It remains to be seen whether the unwritten but unvarying custom of segregated graveyards will change.

The confederation legalized the previously unwritten customs of religious tolerance.