When describing something as becoming fuzzy, there are a variety of synonymous phrases that one could use. One possibility is to say that something has become unclear or blurry, implying a lack of clarity or focus. Another phrase that could be used is that something has become indistinct, conveying a sense of haziness or opacity. Additionally, one might say that something has become muddled or muddied, calling attention to a confusion or lack of definition. Finally, to describe something that has become fuzzy, one might simply say that it has become fuzzy or out of focus, stating the condition directly without any additional nuance or connotation.