acrimony

From Middle French acrimonie, from Latin ācrimōnia (“sharpness, pungency”).

acrimony (countable and uncountable, plural acrimonies)

1. A sharp and bitter hatred.

   Her acrimony for her neighbors manifests itself with shouting and stomping.

   • 2018 November 3, Phil McNulty, “Arsenal 1 - 1 Liverpool”, in BBC Sport‎:

     Liverpool manager Jurgen Klopp was prepared to play a game of patience to land Virgil van Dijk after his initial move to sign the Netherlands captain from Southampton in the summer of 2017 ended in acrimony.

   • 1826, Mary Shelley, chapter 12, in The Last Man:

     In her resentful mood, these expressions had been remembered with acrimony and disdain; [...].

• animosity
• bitterness
• enmity
• hatred
• opposition

• friendship
• peace

• acrimonious