Homologized refers to making or becoming homologous, which means having the same structural features and ancestry as another. Antonyms for this word could include divergent, where two things are moving or developing in different directions, or disparate, where two things are fundamentally different from each other. Another antonym could be heterogeneous, which means consisting of diverse and unrelated parts or elements. Alternatively, the opposite of homologized could be contradictory or opposing, suggesting a lack of similarity or agreement between two things. Lastly, antonyms for homologized could include incomparable or dissimilar, suggesting a significant difference in characteristics or qualities.