There are several synonyms for the word "wrong side" which include "backside", "reverse side", "underside", "inside out", "flawed side", and "inferior side". These words indicate the opposite of the right side of an object or material, and can be used in a variety of contexts. For instance, a piece of fabric may have a wrong side that is less smooth or less colorful than the right side. Similarly, a person may have a wrong side to their personality that is less desirable or presentable than their better qualities. The use of synonyms for "wrong side" can enhance the richness and variety of language.