vulnerability (n.)

• assailability
• breakability
• breakableness
• brittleness
• chink
• crispness
• crumbliness
• delicacy
• disqualification
• exposure
• flimsiness
• fragility
• frailty
• frangibility
• friability
• improvisation
• incapability
• incompetence
• liability
• openness
• penetrability
• pregnability
• susceptibility
• unfitness
• unsuitability
• unsuitableness
• vincibility
• weakness