'Bete noire' definitions:

Definition of 'bete noire'

From: WordNet
noun
A detested person; "he is an anathema to me" [syn: anathema, bete noire]

Definition of 'Bete noire'

From: GCIDE
  • Bete noire \B[^e]te" noire"\ [Fr., lit. black beast.] Something especially hated or dreaded; a bugbear. [1913 Webster]