sui generis
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sui ge·ner·is

adjective \ˌsü-ˌī-ˈje-nə-rəs; ˌsü-ē-ˈje-, -ˈge-\

Definition of SUI GENERIS

: constituting a class alone : unique, peculiar

Examples of SUI GENERIS

  1. <among history's greats Leonardo da Vinci is often considered sui generis—a man of such stupendous genius that the world may never see his like again>

Origin of SUI GENERIS

Latin, of its own kind
First Known Use: 1754

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