of a lifetime

of a lifetime

1. That is the best one can expect to ever encounter.

   Synonym: once-in-a-lifetime

   the opportunity of a lifetime

• “of a lifetime”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “of a lifetime”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
• “of a lifetime” in Longman Dictionary of Contemporary English, Longman.
• “of a lifetime”, in Collins English Dictionary.