The word "pro-generating" implies creating or generating something, so its antonyms would be words that mean the opposite. Some antonyms of "pro-generating" could be words like destroying, demolishing, erasing, stopping, or ending. These words convey a sense of slowing down or coming to a halt, rather than continuing to create or build up. In some contexts, words like negating, neutralizing, or canceling could also be considered antonyms of "pro-generating," as they imply undoing or counteracting past efforts. Regardless of the specific wording, antonyms of "pro-generating" all share a common sense of opposition or reversal.