dissimilarity.

A difference in character or features that makes things unlike each other.

Use it for

Words that belong together

• marked dissimilarity
• dissimilarity between accounts

On the page

The dissimilarity between the samples was greater than expected.

Usage notes

Primary category: academic / formal. Forms: Countable or uncountable by context; countable singular dissimilarity; plural dissimilarities. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: comparison. Commonness: moderately common.