DISC theory splits people’s personalities into four different groups of D – I – S – C. People with strong "S" personality traits are described as steady and stable. They seek out routine, predictability, and safety in their day-to-day life. They strive for close, personal relationships and positive environments without conflict. They are peacemakers, good listeners, and truly loyal friends and supporters. Aside from being positive, friendly, patient, and sympathetic, "S" personalities can also be possessive of their loved ones, and at times can become passive aggressive in their effort to avoid conflict or negativity.
In the DISC personality system, the S-Style has an innate fear of losing their safety and security. As a result, they create routines and resist change.