Animosity means strong dislike, hatred, or hostility towards someone or something. It is when you have a negative feeling or attitude towards someone and it may lead to conflict or arguments. Full definition
As anyone who visits this site or other Arsenal forums will be well aware of the level of animosity between the pro- and anti-Wenger factions, but what can Arsenal possibly do to improve situation? (justarsenal.com)
There is a lot of animosity between the legislature and the Governor. (wben.com)
My soon to be ex is making my visits with my kids darn near impossible because of animosity towards my long time friend and bf! (petition2congress.com)