Monodimensional
Monodimensional refers to something that exists or is described along a single axis or dimension. In a geometric context, a unidimensional object is a line segment. It possesses length but no width or height. Think of a point moving in one direction; the path it traces is a line, which is considered one-dimensional.
In mathematics and physics, unidimensional systems are often used as simplified models to understand complex phenomena.
The concept of unidimensionality can also be applied metaphorically. For example, a person described as unidimensional