dissimilarity
noun [countable, uncountable](plural dissimilarities)
(formal)the fact of not being the same as somebody/something else; a feature that things or people have that makes them different from one another 不相似：与某人不同的事实；事物或人拥有的一种功能，使它们彼此不同 research on the dissimilarity of languages 语言的差异性研究 - dissimilarity between A and B
It is easy to point out dissimilarities between the two cases. 很容易指出这两种情况的不同之处。