Unsubstituited
Unsubstitued is a term used to describe something that has not been replaced or exchanged. It implies originality and a lack of modification. In various contexts, "unsubstitued" can refer to a wide range of items, concepts, or even individuals. For example, in chemistry, an unsubstitued molecule is one that has not had any atoms or groups of atoms replaced by others. This can be important when studying the fundamental properties of a compound before any alterations are made.
In a more abstract sense, an unsubstitued idea or opinion suggests a belief held in its original