The antonyms for the word "more valuing" would be words like "devaluing," "disregarding," or "underestimating." These words indicate a lack of appreciation or importance placed on something, which is the opposite of valuing. When we devalue something, we view it as less important or valuable compared to other things. Likewise, disregarding something means we don't consider it at all, while underestimating suggests that we're not giving it the credit it deserves. In any case, using these antonyms for "more valuing" can help us communicate the opposite ideas and express a lack of appreciation or importance.