The "Lessers triangle" is a term that refers to a concept used in mathematics. It is often associated with the study of angles and their relationships within a triangle. Synonyms for the term "Lessers triangle" can include "acute triangle" or "non-right triangle". These alternative expressions emphasize the sharpness of the angles within the triangle, as opposed to a right triangle which has one 90-degree angle. Other synonyms can include "oblique triangle" or simply "general triangle", highlighting the absence of any specified angles. Each of these synonyms helps to describe a triangle that does not conform to the conditions of a right triangle, adding depth and variety to geometric discussions.