William Ewart Gladstone wil·lia·me·wartgladstone uncommon noun 1. liberal British statesman who served as prime minister four times (1809-1898) SynonymsGladstoneWilliam GladstoneWilliam Ewart Gladstone Related words Broader terms statesman WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.