adjective
scalene
SKAY-leen/ˈskeɪˌlin/
Having three sides of different lengths.
The wooden triangle is scalene, with sides measuring 3, 4, and 5.

Etymology
Greek skalēnos expressed unevenness as well as inequality and already described triangles with unequal sides. The geometric meaning makes that inequality precise: all three side lengths differ.
In context
when you look at the equilateral isosceles and scalene triangles together you can see that the equilateral has three equal sides the isosceles has two and the scalene has none
More examples
- A scalene triangle has no two sides of equal length.
- She draws a scalene triangle next to an equilateral one.
- A right triangle can also be scalene.
Forms
scalene