Secret Skill

Secret Skills (or Hidden Skills) are skills that do not show up in the skills screen. They have been present since The Sims, and has been included in every major sequel (The Sims 2, The Sims 3, The Sims 4) since. Some, however, do not give any benefits (for example, the Reaping skill from The Sims 4) but most do, like the Painting Type Skill.