The word "inundated" refers to being overwhelmed or flooded with something, such as emails or requests. Its antonyms are words that convey the opposite meaning, which is relief or lack of burden. Some of the most common antonyms for "inundated" are "unburdened," "unencumbered," "unloaded," "uncommitted," "unoccupied," "unfilled," "unpacked," "idle," "leisurely," "carefree," "lighthearted," and "relaxed." These words signify the state of not being burdened or overwhelmed with a task or obligation, making them excellent alternatives to use in writing or when expressing a particular sentiment.