sui generis /ˌs(j)uː.aɪ ˈd͡ʒɛn.ə.ɹɪs/adjective 1adverb 1noun 1forms 1 adjective1 •In a class of its own; one of a kind.The transcendent case before us is absolutely sui generis. — 1828 adverb1 •(rare) By itself; of its own.Another possibility is that the council acted sui generis and expressed a one-off view on the facts with no precedential significance. — 2014 noun1 •Something of its own kind; a thing apart.It is word-generated knowledge or knowledge by testimony ( K. T. for short ) – a sui generis. — 2013 formssui genera
