Dictionary

once-in-a-lifetime en · ADJ

Meanings

1. (not-comparable) Likely to happen only once in one's lifetime; extremely rare.
   • a once-in-a-lifetime opportunity to travel the world
   • With Trump in office, they see what one Gulf official called a “once-in-a-lifetime opportunity” to achieve his country’s objectives. 2025 May 11, Nadeen Ebrahim and Abbas Al Lawati, “Trump is visiting three of the world’s richest nations. Here’s what’s on their wish list”, in CNN:

Relateds

once in a blue moon · once in a purple moon · never event · once-in-a-generation

Synonyms

of a lifetime

Translations (6)

fi ainutlaatuinen (Likely to happen only once in one's lifetime) · fr du siècle (Likely to happen only once in one's lifetime) · it più unico che raro (Likely to happen only once in one's lifetime) · he של פעם בחיים (Likely to happen only once in one's lifetime) · cmn 千載難逢 /千载难逢 (Likely to happen only once in one's lifetime) · fr qui ne se présente qu'une fois (Likely to happen only once in one's lifetime)