Meaning of the word fittest in English

What does fittest mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

fittest

US /ˈfɪtɪst/
UK /ˈfɪtɪst/

Superlative Adjective

in the best physical condition; healthy and strong

Example:
Only the fittest athletes will qualify for the Olympics.
Survival of the fittest is a key concept in evolution.