"Ill-gauged" is a term used to describe something that is poorly measured or misjudged. There are several synonyms that can be used in place of this phrase, including "miscalculated," "misjudged," "misinterpreted," and "misconstrued." Other synonyms for "ill-gauged" include "inaccurate," "flawed," and "incorrectly estimated." In some cases, the term "ill-conceived" may also be used to describe something that is poorly thought out or planned. These synonyms can help to add variety to your writing and provide a more nuanced understanding of the concept of misjudgment or miscalculation.