Deceased means no longer living or dead. Find out the origin, usage, and translations of this word, as well as related terms and expressions. deceased definition: no longer alive or dead . Check meanings, examples, usage tips, pronunciation, domains, and related words. Discover expressions like "deceased person", "relationship to the deceased". DECEASED definition: 1. dead: 2. a person who has recently died: 3. dead: . Learn more. Deceased is a formal word for dead, used to refer to a person or people who have recently died. Learn how to use deceased as a noun or an adjective, and see synonyms, pronunciation, and usage examples.