"Fierce rivalry" refers to an intense competition or conflict between two individuals, groups, or entities. It often involves strong emotions, aggressive behavior, and a strong desire to surpass or dominate the other party. Full definition
With such fierce rivalry in the large SUV market, no car can afford to be complacent, and the Sorento gets off to a good start in the battle for showroom appeal. (carbuyer.co.uk)
Manchester United and Liverpool are the two most successful sides in this country's history and always provide plenty of fierce rivalry and drama, as well as quality on both sides. (caughtoffside.com)
Throughout the generations of automotive consumerism, there has never been as fierce a rivalry as the continuous battle between Toyota and Honda. (toyotapaloalto.com)