There are a plethora of synonyms that can be used in lieu of the phrase "be disregarded." Some of these include ignored, overlooked, neglected, dismissed, discounted, minimized, downplayed, underrated, and underestimated. All of these words carry a similar connotation of being passed over or not given the attention or consideration they deserve. It's important to choose the right synonym based on the context. For example, "minimized" might be more appropriate when talking about someone's accomplishments being downplayed while "discounted" might work when talking about the value of an object being diminished. Overall, by having a range of synonyms for "be disregarded," one can provide more precise language and convey their message more effectively.