Photo-engraved is a process that involves the transformation of photographic negatives or positives to a metal plate that can be used for printing. Its antonyms are words that are quite the opposite of it. Some of the antonyms for the word photo-engraved include dissimilar, unalike, different, and unlike. These words imply that there is no similarity between the original image and the metal plate used for printing. Additionally, these words signify the absence of a connection between the photographic image and the process of its printing. Overall, the word photo-engraved has its antonyms that are equally important in describing the diversity of printing processes.