The concept of antonyms revolves around the opposite meanings of words. For the term "un-recalled," which means not remembered or not brought to mind, its antonyms are words that convey the opposite meaning, such as remembered, recollected, or retained in memory. Other antonyms for un-recalled include recovered, recalled, or retrieved. These words imply that something has been restored or brought back to memory, the opposite of un-recalled, which indicates that something has been forgotten or not remembered. In summary, the antonyms for un-recalled are remembered, recovered, recollected, recalled, or retrieved.