There are a number of synonyms for the word "overconvergent" that may be used in different contexts. Some of these synonyms include: superconvergent, ultraconvergent, hyperconvergent, and supralinear. These words all share the same basic meaning as "overconvergent", which is a mathematical term used to describe a series or sequence that converges more quickly than expected. These terms are often used in fields such as physics, engineering, and computer science to describe phenomena that exhibit highly efficient convergence properties, and they are an important part of modern computational techniques. Ultimately, the choice of which synonym to use depends on the specific context and the intended meaning of the term.