Synonyms of the word

debility

• n. A state of physical or mental weakness.

feebleness

• n. The quality or state of being feeble; debility; infirmity.

frailness

• n. The state of being frail; frailty; weakness.

frailty

• n. (uncountable) The condition quality of being frail, physically, mentally, or morally; frailness; infirmity;…
• n. A fault proceeding from weakness; foible; sin of infirmity.

infirmity

• n. feebleness, frailty or ailment, especially due to old age.
• n. a moral weakness or defect.

softness

• n. The quality of being soft.

unfitness

• n. The characteristic of being unfit or ill-suited.
• n. The characteristic of being unfit or out of physical shape.

valetudinarianism

• n. The condition of a valetudinarian; a state of feeble health; infirmity.