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incommensurable

adjective

not commensurable; having no common basis, measure, or standard of comparison.
utterly disproportionate.
Mathematics. (of two or more quantities) having no common measure.

noun

something that is incommensurable.
Mathematics. one of two or more incommensurable quantities.

adjective

incapable of being judged, measured, or considered comparatively
(postpositive foll by with) not in accordance; incommensurate
maths
1. (of two numbers) having an irrational ratio
2. not having units of the same dimension
3. unrelated to another measurement by integral multiples

noun

something incommensurable

adj.

1550s, from Middle French incommensurable or directly from Medieval Latin incommensurabilis, from in- “not, opposite of, without” (see in- (1)) + Late Latin commensurabilis, from Latin com- “with” + mensurabilis “measurable,” from mensurare “to measure” (see measure (v.)). Related: Incommensurably.