Antonyms of noun unfitness

2 of 3 senses of unfitness

Sense 1
unfitness, softness -- (poor physical condition; being out of shape or out of condition (as from a life of ease and luxury))
       Antonym of fitness (Sense 2)
      => fitness, physical fitness -- (good physical condition; being in shape or in condition)

Sense 3
unfitness -- (the quality of not being suitable; "the judges agreed on his unfitness for the appointment")
       Antonym of fitness (Sense 1)
      => fitness, fittingness -- (the quality of being suitable; "they had to prove their fitness for the position")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun unfitness

3 senses of unfitness

Sense 1
unfitness, softness -- (poor physical condition; being out of shape or out of condition (as from a life of ease and luxury))
       => ill health, unhealthiness, health problem -- (a state in which you are unable to function normally and without pain)

Sense 2
inability, unfitness -- (lacking the power to perform)
       => quality -- (an essential and distinguishing attribute of something or someone; "the quality of mercy is not strained"--Shakespeare)

Sense 3
unfitness -- (the quality of not being suitable; "the judges agreed on his unfitness for the appointment")
       => unsuitability, unsuitableness, ineptness -- (the quality of having the wrong properties for a specific purpose)