The phrase "a source of animosity" is correct and usable in written English.
It can be used to describe something that causes hostility or resentment between individuals or groups.
Example: "The ongoing disputes over land ownership have become a source of animosity between the two communities."
Alternatives: "a cause of resentment" or "a point of contention".
Granted, divorce is painful and a source of animosity between the sexes; so is marriage, for many.
Another in 2015 found that sexual harassment was "a source of animosity and discomfort" in the organisation.
When I recounted a recent incident I saw of a dog eating food off shelves in Safeway as its owner idly watched, she agreed that such episodes had been a source of animosity toward dogs.
The C.I.A.'s involvement in the coup, which served as a model for subsequent clandestine operations in Guatemala, Cuba, and other countries, has been well known for decades, and even today it is a source of animosity towards the United States on the part of many Iranians.
Civilian deaths have been a source of extreme animosity between the American-led coandtheirAfghaneir Afghostsosts, particularly those caused by airstrikes.
Contested areas of the South China Sea are a long-standing source of animosity between Vietnam, China, the Philippines, Taiwan, Malaysia and Brunei.
Foremost are rules against the espionage that was a strong distraction and source of animosity in last year's defense.
Mahiyadeen was not the first person to cite the Kamal Khan Dam as the chief source of animosity between Nimruz and Iran.
Another source of animosity between the two men was their competition for the attention of the poet Frances Sargent Osgood in the mid to late 1840s.
Mr. Saif said that the "backlash, animosity and all kind of negative feelings emerging" toward the Syrian refugees was a source of worry for the government.
Now new research illuminates a key source of partisan animosity: Our internal pictures of the opposite party are terribly inaccurate.
