once in a lifetime
idiom
: very rare or very rarely
a once-in-a-lifetime opportunity
This sort of opportunity comes along once in a lifetime.
Examples of once in a lifetime in a Sentence
Recent Examples on the Web
The chefs are cooking a once in a lifetime meal for a table of culinary icons.
—
Buddha Lo, People.com, 13 June 2025
This is a once in a generation chance for Huracán to win the league title, and a once in a lifetime chance for Platense.
—Joseph O'Sullivan, Forbes.com, 27 May 2025
That once in a lifetime moment gone because of DEI's political agenda.
—Michael Dorgan, FOXNews.com, 20 May 2025
Making your debut at La Danse is literally once in a lifetime.
—Michael Nied, People.com, 28 Apr. 2025
See All Example Sentences for once in a lifetime
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Buddha Lo, People.com, 13 June 2025
This is a once in a generation chance for Huracán to win the league title, and a once in a lifetime chance for Platense.
—Joseph O'Sullivan, Forbes.com, 27 May 2025
That once in a lifetime moment gone because of DEI's political agenda.
—Michael Dorgan, FOXNews.com, 20 May 2025
Making your debut at La Danse is literally once in a lifetime.
—Michael Nied, People.com, 28 Apr. 2025
See All Example Sentences for once in a lifetime
Cite this Entry
“Once in a lifetime.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/once%20in%20a%20lifetime. Accessed 17 Jun. 2025.
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