W: (n) unfitness [Related to: unfit] (the quality of not being suitable) "the judges agreed on his unfitness for the appointment"
S: (adj) unfit (not in good physical or mental condition; out of condition) "fat and very unfit"; "certified as unfit for army service"; "drunk and unfit for service"
S: (adj) bad, unfit, unsound (physically unsound or diseased) "has a bad back"; "a bad heart"; "bad teeth"; "an unsound limb"; "unsound teeth"