NotLessSlantEqual[x, y, ...] displays as x \[NotLessSlantEqual] y \[NotLessSlantEqual] ....
NotLessTilde[x, y, ...] displays as x \[NotLessTilde] y \[NotLessTilde] ....
NotNestedGreaterGreater[x, y, ...] displays as x \[NotNestedGreaterGreater] y \[NotNestedGreaterGreater] ....
NotNestedLessLess[x, y, ...] displays as x \[NotNestedLessLess] y \[NotNestedLessLess] ....
NotPrecedesEqual[x, y, ...] displays as x \[NotPrecedesEqual] y \[NotPrecedesEqual] ....
NotPrecedesSlantEqual[x, y, ...] displays as x \[NotPrecedesSlantEqual] y \[NotPrecedesSlantEqual] ....
NotPrecedesTilde[x, y, ...] displays as x \[NotPrecedesTilde] y \[NotPrecedesTilde] ....
NotReverseElement[x, y, ...] displays as x \[NotReverseElement] y \[NotReverseElement] ....
NotRightTriangleBar[x, y, ...] displays as x \[NotRightTriangleBar] y \[NotRightTriangleBar] ....
NotRightTriangleEqual[x, y, ...] displays as x \[NotRightTriangleEqual] y \[NotRightTriangleEqual] ....