unappeasableadjective · Level 3 SAT1not to be placated or appeased or moved by entreatyThe protesters proved unappeasable, rejecting every compromise the administration put forward.ModuleLevel 3RegistercontrastCollectionCollection 077SAT Complete planAlso in Collection 077fracas, eternal, immutability, ramshackle, unrelenting, antagonize, beseeching, luxurious and 1 more