The phrase "just alike" often suggests a similarity or resemblance between two things or people. There are several synonyms that can be used to convey a similar meaning. For instance, you may use phrases such as "identical," "similar," "alike," "indistinguishable," "carbon copy," and "mirror image." Each of these synonyms amplifies the meaning of similarity or resemblance between two objects or persons. "Identical" and "indistinguishable" connote an exact match, while "mirror image" highlights a reflection of one thing in another. No matter which synonym you choose, it is likely to underscore the notion of sameness and likeness between the objects or people being compared.