When we use the word "misestimated," it suggests that something was not correctly calculated or assessed. Some other synonyms that could be used for this word include "miscalculated," "underestimated," "misjudged," "misconstrued," "overlooked," or "misinterpreted." Depending on the context, any of these words could be used to convey similar meaning. For example, someone may have miscalculated their budget, underestimated the strength of their opponent, or misjudged the intentions of their friend. Each of these scenarios involves a similar mistake in estimation or assessment, and therefore, could be described using various synonyms for "misestimated".