1. (n.) A physical, mental, or moral weakness; liableness to be broken or deceived\.

2. (n.) A fault proceeding from weakness; foible; sin of infirmity.

abulia airiness airy texture amiable weakness attenuation bad habit besetting sin blemish breakability breakableness brittleness bug cachexia cachexy catch changeableness chronic ill health collapse cowardice crack crackability crackableness crispness crumbliness crushability crushableness daintiness debilitation debility decrepitude defect defection deficiency delicacy delicate health destructibility diaphanousness dilutedness dilution disintegration drawback effeminacy enervation ethereality exhaustion exiguity exility failing failure faintheartedness faintness fallibility fault faute fear feeblemindedness feebleness fineness fissility flaw flimsiness foible fracturableness fragility frangibility friability gauziness gossameriness gracility healthlessness hole human equation human frailty human weakness humanity humanness hypochondria hypochondriasis ill health imperfection impressionability inadequacy indecisiveness infirmity infirmity of will inherent vice insubstantiality invalidism invalidity irresolution kink lacerability laciness languishing languishment liability lightness little problem mistiness moral flaw moral weakness morbidity morbidness mortality paperiness peakedness pliability poor health problem rarity rift shortcoming sickliness sleaziness slenderness slightness slimness snag something missing spinelessness subtility suggestibility susceptibility taint tenuity thinness unhealthiness unsoundness unsubstantiality unwholesomeness vagueness valetudinarianism velleity vice vulnerability vulnerable place wasting wateriness weak link weak point weak side weak will weak-mindedness weakliness weakness wispiness womanishness