na-adjective, noun which may take the genitive case particle 'no', noun
difference; diversity; irregularity; disorder
Describes things that are not uniform, vary, or are inconsistent. Often used in formal or technical contexts such as 不同がある (there are differences) or 不同を生じる (to cause irregularities).
地域によって気候に不同がある。
There are differences in climate depending on the region.
このデータには不同が見られる。
Irregularities can be seen in this data.