n.

poor physical condition; being out of shape or out of condition (as from a life of ease and luxury)

同義詞：softnesspoor shapebad condition

lacking the power to perform

同義詞：inability

the condition of not being suitable

"the judges agreed on his unfitness for the appointment"

Fitness, Unfitness, And Phosphate
THE UNFITNESS OF YOUNG MEN IN MOTOR FITNESS
Rule 10b-5 and the Unfitness Question
Unfitness to plead: Thoughts prompted by Glenn Pearson's case
Fat and Inflammaging: A Dual Path to Unfitness in Elderly People?
Widespread host-dependent hybrid unfitness in the pea aphid species complex.
Use of multicopy transposons bearing unfitness genes in weed control: four example scenarios
Distribution of diagnoses, diseases, unfitness for duty and accidents among seamen and fisherman
The Impact of Disclosure of Unfitness to Drive in Persons with Newly Diagnosed Dementia: Patient and Caregiver Perspectives
Hemorheological correlates of fitness and unfitness in athletes: moving beyond the apparent "paradox of hematocrit"?