1. (n.) The condition or quality of being insecure; want of safety; danger; hazard; as, the insecurity of a building liable to fire; insecurity of a debt.

2. (n.) The state of feeling insecure; uncertainty; want of confidence.

chanciness criticalness danger delicacy desultoriness doubtfulness dubiousness hazard hazardousness infirmity insolidity instability insubstantiality peril perilousness precariousness risk riskiness shakiness shiftiness shiftingness slipperiness speculativeness sword of Damocles ticklish business ticklishness totteriness touchiness treacherousness treachery unauthenticity unauthoritativeness uncertainty undependability unfaithworthiness unhealthiness unpredictability unreliability unsafeness unsolidity unsoundness unsteadfastness unsteadiness unsubstantiality unsureness untrustworthiness