The antonyms for the word "reproduced" are quite broad in nature as it refers to the act of creating a copy or a duplicate of something. Some of the possible antonyms for "reproduced" can be words like original, unique, one-of-a-kind, or authentic. These antonyms highlight the opposite nature of a reproduction, which is to create something new and different. Another useful antonym for "reproduced" can be words like destroyed or erased, which highlights the act of removing or eliminating something altogether. Overall, there are many antonyms for "reproduced," all of which reflect different shades of meaning and emphasize different aspects of creating or preserving something.