What is another word for fittest?
Pronunciation: [fˈɪtəst] (IPA) 
"Fittest" is a term frequently used to describe someone or something at the top of their game, the strongest, or most capable. Some synonyms for "fittest" include: healthiest, strongest, hardiest, most resilient, most vigorous, most robust, most tenacious, most adaptable, most durable, and most able-bodied. These terms are often used when discussing physical fitness, but they can also describe someone who is mentally or emotionally the strongest or most resilient in a given situation. Whether it's a person or an object, being the "fittest" often implies a level of superiority or advantage over others and is a desirable attribute in many contexts.
