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prawo niepisane

rzeczownik

full

unwritten law

noun

Definitions of unwritten law

a rule that has been established by precedent and not by legislation, especially when established in a legal case

Unlike the US, the UK's constitution is based on unwritten law.

a rule, custom or way of behaving that seems to be true of a particular group or society, but which is not written down

It's one of the unwritten laws of life - a parent's job is to embarrass their offspring.