fitness

noun

fit·​ness ˈfit-nəs How to pronounce fitness (audio)
1
: the quality or state of being fit
2
: the capacity of an organism to survive and transmit its genotype to reproductive offspring as compared to competing organisms
also : the contribution of an allele or genotype to the gene pool of subsequent generations as compared to that of other alleles or genotypes

Examples of fitness in a Sentence

a gymnastics program promoting fitness and agility in school-aged children I have to question the fitness of wearing a bright red dress to a funeral.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Neymar’s current head coach at Al Hilal, Jorge Jesus, told reporters on Thursday that the Brazilian’s recent knee injury, and his overall lack of fitness, had finally caught up with him. Felipe Cardenas, The Athletic, 17 Jan. 2025 The New York senator had reportedly long been concerned about Biden’s mental fitness as the then-81-year-old showed signs of aging. Jackson Walker, Baltimore Sun, 17 Jan. 2025 Debate Performance Longstanding concerns about Biden's physical and mental fitness intensified after a poor performance in the June 2024 CNN presidential debate. Yaakov Katz, Newsweek, 17 Jan. 2025 Matching workout sets have been the It outfit at fitness studios and gyms for years now, and the trend isn’t going anywhere any time soon. Dana Leigh Smith, Glamour, 16 Jan. 2025 See all Example Sentences for fitness 

Word History

First Known Use

1580, in the meaning defined at sense 1

Time Traveler
The first known use of fitness was in 1580

Dictionary Entries Near fitness

Cite this Entry

“Fitness.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fitness. Accessed 23 Jan. 2025.

Medical Definition

fitness

noun
fit·​ness ˈfit-nəs How to pronounce fitness (audio)
: the capacity of an organism to survive and transmit its genotype to reproductively fertile offspring as compared to competing organisms
also : the contribution of an allele or genotype to the gene pool of subsequent generations as compared to that of other alleles or genotypes

More from Merriam-Webster on fitness

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!