The phrase "more on-and-off" can be described using several synonyms depending on the context. Some alternatives for "more on-and-off" include irregular, sporadic, occasional, intermittent, fitful, erratic, unsteady, patchy, and inconstant. These words suggest inconsistency or irregularity in occurrence, such as sporadic rainfall or intermittent pain. Additionally, the phrase can be interpreted as describing a wavering attitude or approach to something, such as an on-and-off relationship, which could be conveyed using words like indecisive, vacillating, fickle, or capricious. Using different synonyms can provide a more nuanced description of the situation or condition being described.