Constitutions can be classified according to the form in which their constitutional rules are expressed.
The traditional classification is:
However, this distinction is relative rather than absolute because modern constitutional systems generally contain both written and unwritten elements.
A written Constitution is one in which the fundamental constitutional rules are primarily contained in a formal constitutional document or set of constitutional documents.
The Indian Constitution is a written Constitution.
An unwritten Constitution is one in which constitutional rules are not contained primarily in a single formal constitutional document.
It develops through a combination of:
The United Kingdom is the classic example.
The term "unwritten" can be misleading because much of the British constitutional system is actually written in laws and judicial decisions. It is better understood as a non-codified or uncodified constitutional system.
| Basis | Written Constitution | Unwritten/Uncodified Constitution |
|---|---|---|
| Form | Primarily contained in formal constitutional documents | Spread across laws, conventions, customs and judicial decisions |
| Certainty | Generally higher | Relatively lower |
| Accessibility | Constitutional rules are formally organised | Rules may be distributed across multiple sources |
| Amendment | Often requires special constitutional procedure | Often easier through ordinary legislative processes |
| Judicial interpretation | Courts rely heavily on constitutional text | Courts may rely on statutes, precedent and conventions |
| Example | India, USA | UK |
Government powers and constitutional rules are formally specified.
Fundamental rights can be expressly guaranteed.
Written constitutional provisions can clearly restrict governmental authority.
Courts can assess laws against a formally established constitutional text.
Fundamental rules are less likely to change with ordinary political fluctuations.
If amendment procedures are highly difficult, the Constitution may struggle to adapt to changing circumstances.
Political questions may become heavily dependent on judicial interpretation.
A highly detailed Constitution may become complex and difficult to navigate.
Constitutional rules can evolve through legislation, conventions and political practice.
The system can respond more easily to changing political and social conditions.
Constitutional development can occur incrementally rather than through frequent formal amendments.
Constitutional rules may be distributed across different sources.
Political practices may play an important role in constitutional functioning.
Where constitutional limits are less formally entrenched, stronger political forces may potentially alter established arrangements.
The distinction between written and unwritten Constitutions should not be treated as absolute.
A written Constitution can contain:
Similarly, an uncodified Constitution can contain extensive written laws.
Therefore, codified vs uncodified is often a more precise description than simply written vs unwritten.
India has a written and detailed Constitution.
However, its functioning also depends on:
Therefore, the written constitutional text operates together with constitutional practices and interpretations.
A comparison can be made through:
The written–unwritten distinction is a useful starting point for understanding constitutional systems, but modern constitutionalism is more complex. Even written Constitutions depend on conventions, judicial interpretation and political practices, while uncodified systems contain substantial written constitutional law.
Written Constitution → Formal constitutional text
Uncodified Constitution → Laws + Conventions + Customs + Judicial decisions + Practices
India = Written + Detailed + Combination of Rigidity and Flexibility
