animosity
n. C / Un. a strong feeling of dislike or anger toward someone. It usually happens because of a past argument or a long history of not getting along.
n. a state of strong hostility or active ill will. Often implies a long-standing or deep-seated resentment between parties.
There is no animosity between the two former rivals.
The long legal battle created a great deal of animosity between the two families, making any future reconciliation unlikely.
Despite their professional disagreements, the researchers maintained a civil relationship, ensuring that personal animosity did not cloud the objective evaluation of their shared data.
From French animosité, from Latin animositas (“courage, spirit, vehemence”), from animosus, from animus (“courage, spirit, mind”); see animose, animate.
Uncountable when referring to the general feeling; countable when referring to specific instances or acts of hostility.