Akademik

sui generis
adjective /suˑ.i ˈɡɛnɛɹɪs,sʊɪ ʤəˈnɛɹɪs/
a) In a class of its own; one of a kind.

Anyone who considers the Femmes sui generis has never listened to the Velvets.

b) By itself; of its own.

We see him as he sees himself, surveying the invisible depths of ethical space, with all the distinction of a specialist in the sui generis.

Syn: one of a kind, unique, per se

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