Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun survival_of_the_fittest

1 sense of survival of the fittest

Sense 1
survival, survival of the fittest, natural selection, selection -- (a natural process resulting in the evolution of organisms best adapted to the environment)
       => natural process, natural action, action, activity -- (a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity")