Weakness

Inability to resist influence, harm, or disease.

vulnerability frailty

Weakness is a perceived or actual inability to resist the influence of another person, thing, or situation. It can also refer to a vulnerability to physical harm or disease.

/ˈwiːknəs/

From Old English *wǣcnysse*, from *wǣc* 'vigilant, awake' + *-ness'

frailty vulnerability susceptibility

strength resilience

condition state of being

dependency susceptibility fragility

problem psychological state