not able to be judged by the same standard as something; having no common standard of measurement 不能以同一标准衡量的,不能用其他标准衡量的;无共同尺度的 the two types of science are incommensurable. 这两种科学不能以同一标准衡量。
(Mathematics)(of numbers) in a ratio that cannot be expressed as a ratio of integers (数)(数字)不可通约的,无公度的 ■irrational 无理数的