In a way that is not proportional or balanced; affecting some more than others in an unequal way.
From disproportionate + -ly. The adjectival form disproportionate comes from disproportion, and -ly converts it to its adverbial form.
This is one of the most important words in social science writing—researchers use 'disproportionately' constantly to describe how disease, poverty, and violence affect different communities unequally.
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