Amendment: An amendment is a change or addition made to the Constitution. It allows for updating and modifying the document over time.
Rigidity: Rigidity refers to the inflexibility or inability to easily change something. In the context of the Constitution, it means that making amendments can be challenging due to strict requirements.
Persistence: Persistence means the continuation or lasting presence of something. In this case, it refers to how characteristics of difficulty in making changes under the Articles still exist in amending our current Constitution.