The ability to create a forceful shield of energy. Violet can generate purple spherical forcefields around herself. The forcefields are very sturdy, and act as a solid surface. Being generated as a sphere, it can be rolled around as a life-size hamster ball. It has also been shown that she can generate forcefields around other objects, as long as they are in her vicinity. At first, she can only generate a wall-like forcefield; this is seen when she stops Dash from running around the dining room table. Her powers advance later on in the film; she is able to create more powerful and longer lasting forcefields in different shapes and sizes. This is seen when she stops multiple guards from attacking herself and her family when they are confronted with a large and sturdy forcefield wall.
The ability to turn ones self invisible to the naked eye. Violet can turn invisible at will. She can turn parts of her body, or even her entire self invisible. If she is touching her suit, or somebody else, she can turn them invisible as well.
This isn't so much a power as it is a trait. Violet has been shown to be quite intelligent. For instance, she came up with the idea to fly rocket by using the coordinates from the last launch. She also knew how to escape from her electrical bonds that Syndrome kept her and her family in, and was easily able to deactivate there restraints. When exposed to the Superpower Virus in the City of Incredibles arc of the comics, her powers are enhanced enough to be glowing with purple shield energy and being able to use her shielding abilities more offensively. She can also use her force fields to hit others and levitate.