sui generis

/suห‘.i หˆษกษ›nษ›ษนษชs/

IPA: /S UW1 IY0 JH AH0 N EH0 R IH0 S/

noun
  1. 1

    (incorrectly) A thing apart, an isolated specimen

adjective
  1. 1

    In a class of its own; one of a kind.

  2. 2

    (rarer) By itself; of its own.

    โ€œIt is nothing to worry about sui generis, but in context of the other factors it's alarming indeed.โ€

    syn:per se

Source: https://en.wiktionary.org/wiki/sui%20generis