anathema

noun4

1. •
   Something which is vehemently disliked by somebody.

   • Even three years ago, the thought of spending two hours, let alone a whole day, without my mobile would have been anathema. — 2015
2. •
   (historical) A ban or curse pronounced with religious solemnity by ecclesiastical authority, often accompanied by excommunication; something denounced as accursed.
3. •
   (literary) An imprecation; a curse; a malediction.

   • I trembled at his ringing wealth Of manifold anathemas […] — 1920
4. •
   Any person or thing anathematized, or cursed by ecclesiastical authority to unending punishment.

   • If any man love not the Lord Jesus Christ, let him be Anathema Maranatha. — 1611