Emotional security is the measure of the stability of an individual's emotional state. Emotional insecurity or simply insecurity is a feeling of general unease or nervousness that may be triggered by perceiving of oneself to be vulnerable or inferior in some way, or a sense of vulnerability or instability which threatens one's self-image or ego. never dying, longing for security. Insecurity may contribute to the development of shyness, paranoia and social withdrawal, or alternatively it may encourage compensatory behaviors such as arrogance, aggression, or bullying, in some cases.