/an'euh mos"i tee/ , n. , pl. animosities .
a feeling of strong dislike, ill will, or enmity that tends to display itself in action: a deep-seated animosity between two sisters; animosity against one's neighbor.
[ 1400-50; late ME animosite ( animositas. See ANIMUS, -OSE 1 , -ITY ]
Syn . hostility, unfriendliness, opposition, antagonism, animus, hatred.