Not able to be measured by the same standards as another term in the context.
having a ratio that is not expressible as a fraction of two integers.
having no common integer divisor except 1.
An incommensurable value or quantity; an irrational number.
Not capable of being perceived or known.
Not distinguishable; not capable of being perceived, known, or discriminated as separate and distinct
Any of a set of things that cannot be distinguished.