Incommensurable
Incommensurable , adjective
[Prefix in- not + commensurable: compare French incommensurable.]
Not commensurable; having no common measure or standard of comparison; as, quantities are incommensurable when no third quantity can be found that is an aliquot part of both; the side and diagonal of a square are incommensurable with each other; the diameter and circumference of a circle are incommensurable.
They are quantities incommensurable.
Incommensurable , noun
One of two or more quantities which have no common measure.