A flexible constitution is one that is easily influenced by change and is readily amended by general legislation. The United States has a flexible constitution because it contains amendments and has a set process by which additions are accepted in a standardized and straightforward manner. The more convoluted an amendment process, the more rigid it is considered.
Flexible constitutions are commonly seen in republics and democracies. These documents are easy to amend and are open to updates to keep them relevant to modern trends and social values. A flexible constitution is also referred to as an elastic constitution because its meanings are often stretched to apply conditions in the current document to current affairs without requiring any amendments. In the event that an amendment is necessary, the process by which it is carried out is easy to understand and offers a clear guideline for making these changes permanent.
A flexible document grants more input from current generations and allows people to exert input and current ideas on how the country is managed. The adaptability of flexible constitutions makes them popular among the people. It also allows for governments to bend in the face of extreme crises and circumstances without having to break laws or reformat national frameworks.