Definition of frailty :
1. A fault proceeding from weakness; foible; sin of infirmity.
2. The condition quality of being frail, physically, mentally, or morally, frailness; infirmity; weakness of resolution; liableness to be deceived or seduced.
decrepitude, wobbliness, unsubstantiality, failing, strength, strong, shakiness, fault, defect, delicateness, weakliness, puniness, shortcoming, insubstantiality, tenuity, imperfection, flaccidity, weak point, fragileness, flimsiness, vice, valetudinarianism, unsoundness, better, foible, help, softness, frailness, susceptibility
brittleness (part of speech: noun)
weakness (part of speech: noun)
- Those who confide in their own strength are in great danger of being tempted so far as to be constrained to acknowledge their frailty. - "The Tales Of The Heptameron, Vol. IV. (of V.)", Margaret, Queen Of Navarre.
- She had wrecked her love to no purpose, for her mother must have been weighed down by the imagination of her daughter's frailty. - "Carnival", Compton Mackenzie.
- She reached the villa which had been engaged by Story's aid, with the sense of " a peculiar frailty of being." - "Robert Browning", Edward Dowden.