The word "ex pire" refers to something that has come to an end or has expired. Its antonyms, on the other hand, refer to things that are ongoing or continuing. Some great antonyms of expire are persist, endure, continue, maintain, and last. If we talk about food, its antonyms could be fresh or new. For an agreement, its antonyms could be uphold or extend. For a license or passport, its antonyms could be renew or valid. These antonyms highlight the opposite of the word expire and help communicate the idea of the uninterrupted and lasting nature of things. Overall, antonyms are essential for presenting a balanced, well-rounded understanding of the language.