Reference meaning
once-in-a-lifetime
Last updated
Likely to happen only once in one's lifetime; extremely rare.
Source and scope
This definition is reproduced from English Wiktionary, sense en-once-in-a-lifetime-en-adj-JGY3F4L-, under the CC BY-SA 4.0. It has not yet received VocabularyBase editorial review. Read the source and license details.