Definitions of expired adjective having come to an end or become void after passage of a period of time “an expired passport” “caught driving with an expired license” synonyms: invalid EXPIRED definition: 1. past simple and past participle of expire 2. If something that lasts for a fixed length of time…. Learn more. EXPIRED definition: past participle of expire. and past tense form of expire. See examples of expired used in a sentence. expired that is no longer valid that has been breathed out dead Know the meaning of 'expired', its synonyms, key differences, and usage in examples. EXPIRED definition: to finish or run out; cease ; come to an end | Meaning, pronunciation, translations and examples 1. To come to an end; terminate: My membership in the club has expired. 2. To breathe one's last breath; die: The patient expired early this morning. 3. To exhale; breathe out. The meaning of EXPIRED is dead, deceased —often used as a euphemistic or humorous alternative to dead. How to use expired in a sentence. The meaning of EXPIRE is to breathe one's last breath : die. How to use expire in a sentence. Definition of expired adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.