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Added 9 October 2026

fitness

/ˈfɪt.nəs/ noun

First recorded: 1935 Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about fitness at Wordnik → Where our words come from →

The quality of being suitable.
they had to prove their fitness for the position
Good physical condition; being in shape or in condition.
The quality of being qualified.

Origin

From fit + -ness. First attested in the 16th century, with the physical sense from 1935.

From Wiktionary, via Kaikki.org (CC BY-SA)

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