Unidentical refers to things that are not identical or exactly the same. The word can be replaced with several synonyms that convey the same meaning. For instance, the word "different" is commonly used as a synonym for unidentical. Other synonyms for unidentical include "distinct," "dissimilar," "divergent," and "disparate." "Various," "unequal," and "unique" can also replace unidentical in certain contexts. Additionally, "contrasting," "heterogeneous," and "individual" can convey a sense of unidentical. Finding the most appropriate synonym for unidentical to suit the given context can help to avoid wordiness while maintaining clarity in communication.