Which term describes a triangle that has no sides of equal length?

A triangle that has no sides of equal length is defined as a scalene triangle. In this type of triangle, each side is of a different length, and consequently, the angles opposite those sides are also different. This distinct feature differentiates scalene triangles from other types of triangles, such as isosceles triangles, which have at least two sides of equal length, and equilateral triangles, where all three sides are equal in length. Right triangles can be scalene or isosceles, depending on the side lengths. Therefore, the term that most accurately describes a triangle lacking any equal sides is scalene triangle.