Survival of the fittest idiom the belief that only the people with a strong desire to succeed and the ability to change as conditions change will achieve success. Word Family survival of the fittest the survival of the fittest family EDITORS CHOICE. Survival Of The Fittest Definition And Examples Of This Useful Idiom 7esl Idioms And Phrases Idioms Other Ways To Say This means that the most able and healthy and successful will surviveI don t like this term or beliefsystem eitherI believe that you should root for the under dog every now and thenThis statement Survival of the fittest is used as a way throughout history to use genocidal tactics against people of different ethnecitiesand handicapsThis adage can be woven so easily into. . This is used literally as a principle of the theory of evolution In college its the survival of the fittest. Biological Evolution In terms of biological evolution the phrase survival of the fittest does not ref