| Incommensurable 1. (a.) 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. 2. (n.) One of two or more quantities which have no common measure. Thesaurus Entries abnormal, absurd, alien, anomalous, apart, detached, disconnected, discrete, disjunct, disproportionate, disrelated, dissimilar, dissociated, exotic, extraneous, foreign, incoherent, incommensurate, incomparable, incompatible, incongruous, inconsequent, inconsistent, inconsonant, independent, insular, irreconcilable, irrelative, isolated, not comparable to, of different orders, other, out of proportion, outlandish, oxymoronic, paradoxical, removed, segregate, self-contradictory, separate, separated, strange, unaffiliated, unallied, unassociated, unconnected, unlike, unrelatable, unrelated |