unrelentingadjective · Level 3 SAT1not to be placated or appeased or moved by entreatyThe lawyer mounted an unrelenting defense that lasted three exhausting weeks in court.ModuleLevel 3RegistercontrastCollectionCollection 077SAT Complete planAlso in Collection 077fracas, eternal, immutability, ramshackle, unappeasable, antagonize, beseeching, luxurious and 1 more