FIT'NESS, noun 1. Suitableness; adaptedness; adaptation; as the fitness of things to their use. 2. Propriety; meetness; justness; reasonableness; as the fitness of measures or laws. 3. Preparation; qualification; as a student's fitness for college. 4. Convenience; the state of being fit.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI