survival of the fittest

American  

noun

1. (not in technical use) natural selection.

2. a 19th-century concept of human society, inspired by the principle of natural selection, postulating that those who are eliminated in the struggle for existence are the unfit.

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survival of the fittest British  

noun

1. a popular term for natural selection

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survival of the fittest Idioms  

1. Those best adapted to particular conditions will succeed in the long run, as in They've had to close a dozen of their stores, but the ones in the western part of the state are doing well—it's the survival of the fittest. This phrase was invented by Herbert Spencer in Principles of Biology (1864) to describe Charles Darwin's theory of natural selection of living species. By the early 1900s it was being transferred to other areas.

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Etymology

Origin of survival of the fittest

First recorded in 1860–65

Example Sentences

On a more philosophical level, Klaas writes that it’s a “tragic mistake” to believe that “’survival of the fittest’ — with overtones of relentless, flawless optimization” fairly describes evolutionary principles.

From Salon

He told them: “I know that it's bad, but I just call it survival of the fittest”

From BBC

We’re in a game of survival of the fittest, where surviving itself feels akin to luxuriating in what should be hostile territory, mastering an environment we have come together to ravage.

From Los Angeles Times

"This will be a season of survival of the fittest but I can only put 20 players in the squad," said Ten Hag.

From BBC

It is important when you want to be at the top level, in a season like this, which will be a season of ‘survival of the fittest’ you need squad depth.

From BBC