His argument was low-level and unconvincing.
Let's stop such trivial talk.
na-adjective, noun which may take the genitive case particle 'no', noun
low-dimensional
Mathematics term referring to spaces or objects with a small number of dimensions, such as 2D or 3D.
Geometry in low-dimensional spaces is intuitively easy to understand.
Compound of 低 (low) + 次元 (dimension). The figurative sense 'low-level' derives from the idea of a lower dimension being simpler or less sophisticated.