Once in a lifetime.
A very rare opportunity.
'Once in a lifetime' describes an event or experience that is so rare and exceptional that it is likely to happen only once in a person's life. It underscores the uniqueness and often, the preciousness of these opportunities. Examples include witnessing a rare celestial event or having a chance to meet a highly influential person. Emphasizing the urgency and scarcity, it encourages making the most of these moments.
Example Sentences
Winning the lottery was a once in a lifetime event.
Winning the lottery was a rare and special event.
Her trip to Antarctica was a once in a lifetime experience.
Her trip to Antarctica was a rare and unique experience.
Receiving that prestigious award was a once in a lifetime moment for him.
Receiving the award was a rare and unique moment for him.
