How to use revolutionary in a sentence. involved in or relating to a revolution: 2. completely new and having a great effect: 3…. REVOLUTIONARY definition: of, pertaining to, characterized by, or of the nature of a revolution, or a sudden, complete, or marked change. See examples of revolutionary used in a sentence. A revolutionary person fearlessly advocates radical change. Revolutionary people and ideas challenge the status quo and might be violent or willing to upset the natural order to achieve their goals. often Revolutionary Relating to or being a revolution: revolutionary war; a museum of the Revolutionary era. Bringing about or supporting a political or social revolution: revolutionary … Factsheet What does the word revolutionary mean? There are three meanings listed in OED's entry for the word revolutionary. See ‘Meaning & use’ for definitions, usage, and quotation evidence. Find 73 different ways to say REVOLUTIONARY, along with antonyms, related words, and example sentences at Thesaurus.com.