indeterminacy       
noun [ U ] uk/ˌɪn.dɪˈtɜː.mɪ.nə.si/ us/ˌɪn.dɪˈtɝː.mɪ.nə.si/
 不确定性;不明确性
the state of not being measured, counted, or clearly known
  A sort of moral indeterminacy has always been at the centre of his art. 道德上的不确定性一直是他艺术创作的核心。 
 He is bothered by the indeterminacy that quantum theory ascribes to the physical world.
 See: indeterminate
 - More examples
 - As a novelist and playwright, he is attuned to the indeterminacy of the inner world.
 - In complex issues, uncertainty, ignorance, and indeterminacy are always present.
 - The meanings of modal words involve an element of indeterminacy that somewhat resembles ambiguity.