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not / never in a thousand years
01
used to say that the chances of something happening or being true are very slim
Idiom
Informal
What is the origin of the idiom "not in a million years" and when to use it?
The phrase "not in a million years" is an idiom used to express extreme certainty that something will never happen. The origin of this phrase is not precisely documented, but it likely emerged from the idea that a million years is an incredibly long time, making the occurrence of a particular event extremely unlikely.
Examples
Never in a million years did I think he would apologize first.
