bête noire/ˌbet ʹnwah/ noun (pl bêtes noires /ˌbet ʹnwah/)

• I'll be jiggered
• ill-bred
• ill-considered
• ill-disposed
• illegal
• illegible
• illegitimate
• ill-fated
• ill-favoured
• ill-gotten
• ill-humoured
• illiberal
• illicit
• illimitable
• illiterate
• ill-mannered
• ill-natured
• illness
• illogical
• ill-starred
• ill-tempered
• ill-timed
• ill-treat
• illuminance
• illuminant