Not in a million years
Meaning
To declare with absolute certainty that something will never happen or that one will never do something.
Origin
The phrase "not in a million years" springs from our inherent human need to express absolute, unequivocal impossibility with dramatic flair. While it lacks a specific origin event or a singular eureka moment, its power lies in its sheer hyperbole, leveraging an impossibly vast span of time to underscore a refusal or a denial. As the concept of 'a million' moved from an abstract mathematical term to a more commonly understood, albeit still immense, quantity in the modern era, it became the perfect linguistic tool to declare, without a shadow of a doubt, that something simply won't happen—ever. It's a pure distillation of emphatic negation, turning a number into an unyielding wall against any possibility.
Examples
- Will I ever forgive him for what he did? Not in a million years.
- She asked if I'd ever try skydiving, and I told her, 'Not in a million years!'