vulnerability

n. defenselessness; susceptibility; quality of being easily hurt or harmed, sensitivity

For other uses of the word "Vulnerability", please refer to vulnerability (computer science) You may also want to refer to natural disaster. Vulnerability is the susceptibility to physical or emotional injury or attack. It also means to have one's guard down, open to censure or criticism; assailable. Vulnerability refers to a person's state of being liable to succumb, as to persuasion or temptation (see Thywissen 2006 for a comparison of vulnerability definitions).
See more at Wikipedia.org...

Noun
1. the state of being vulnerable or exposed; "his vulnerability to litigation"; "his exposure to ridicule"
(synonym) exposure
(hypernym) danger
2. susceptibility to injury or attack
(antonym) invulnerability
(hypernym) weakness
(hyponym) defenselessness, defencelessness, unprotectedness

(n.)
The quality or state of being vulnerable; vulnerableness.
  

Synonyms and related words:
ad lib, assailability, breakability, breakableness, brittleness, chink, crackability, crackableness, crispness, crumbliness, crushability, crushableness, delicacy, disqualification, exposure, extemporaneousness, fissility, flimsiness, fracturableness, fragility, frailty, frangibility, friability, heel of Achilles, improvisation, incapability, incompetence, lacerability, lack of preparation, liability, nonpreparation, nonpreparedness, openness, penetrability, planlessness, pregnability, soft spot, susceptibility, susceptivity, unfitness, unfittedness, unpreparedness, unqualification, unqualifiedness, unreadiness, unsuitability, unsuitableness, unsuitedness, vincibility, vulnerable point, weak link, weak point, weakness