Antonyms for the word "identical form" can vary depending on the context. In terms of physical appearance, antonyms could include dissimilar, different, or diverse. Conversely, in terms of nonphysical characteristics, antonyms could include contrasting, opposite, or variable. Additionally, the use of the term "identical form" often implies an exact match or replication, leading antonyms to include irregular, uneven, or inconsistent. In technical fields, antonyms for "identical form" could include nonstandard, divergent, or diverging. Overall, antonyms for "identical form" are a useful tool for expressing variance and distinction in various contexts.