The phrase "bitter feud" means a long-lasting and intense disagreement or conflict between two parties, usually filled with anger, hostility, and resentment towards each other. Full definition
The result creates a new United Conservative Party and ends a decade of bitter feuding between the two parties. (macleans.ca)
Angela Bassett as Marie Laveau, «Coven» — The Voodoo Queen of New Orleans» bitter feud with Fiona and Madame LaLaurie was one of the highlights of «Coven,» as it allowed for some great dialogue for three of the best actresses in the «AHS» stable. (thewrap.com)
But after months of bitter feuding, Iraq's Parliament has finally approved a budget, outlined.... (firstthings.com)