Definition

Noun: 1. A law or body of law based on custom, tradition, or judicial precedent, rather than on formally enacted statutes or written constitutions. It represents rules of conduct that are understood and accepted by a community or society, even though they are not officially codified. 2. A principle or rule that is so universally accepted or ingrained in a particular context (e.g., a profession, group, or activity) that it is considered binding, despite not being formally stated.

Usage

The term "unwritten law" is used to describe societal rules that derive their authority from long-standing practice and collective acceptance, not from a legislative body. It often governs areas of social conduct, ethics, and professional behavior.

Examples

• Noun:
  • The understanding that you should hold the door for someone behind you is a common unwritten law of polite society.
  • In many journalistic organizations, protecting a confidential source is an unwritten law.
  • The unwritten law of the sea demanded that sailors help any vessel in distress.

Advanced Usage

• "to be governed by unwritten law": to be regulated or guided by customary rules.
  • The conduct of diplomats is often governed more by unwritten law and precedent than by strict treaties.
• Used in legal and sociological discussions to contrast formal legal systems with informal normative systems.

Variants and Related Words

• Customary law (n): Law established by consistent habitual practice.
• Common law (n): A body of law derived from judicial decisions and precedent (a specific, formalized type of unwritten law in some legal systems).
• Convention (n): A way in which something is usually done, especially within a particular area or activity.
• Norm (n): A standard or pattern of social behavior that is accepted in a society.

Synonyms

• Tradition: The transmission of customs or beliefs from generation to generation.
• Convention: A widely accepted way of behaving or doing something.
• Code of conduct: A set of rules outlining the social norms and responsibilities of an individual or organization.
• Tacit rule: A rule that is understood or implied without being directly stated.

Related Phrases

• Unspoken rule: A rule that is not formally articulated but is generally understood and followed. (This is a more informal, near-identical phrase).
  • There's an unspoken rule in the office that the person who makes the coffee pot empty should start a new one.

Related Idioms

• The law of the jungle: A situation where people are prepared to harm others in order to succeed, governed by raw power rather than civilized rules. (This can be seen as a brutal form of unwritten law).
  • In that cutthroat industry, it's often the law of the jungle.

Noun

1. law based on customary behavior