The phrase "most unbroken" implies a level of wholeness or consistency. Synonyms for this term may include "intact," "complete," "uninterrupted," "continuous," "undivided," or "unimpaired." Additionally, other words that convey similar notions may include "unscathed," "perfect," "flawless," "unaltered," or "unblemished." These terms all suggest a state of wholeness or lack of disruption, and can be applied to a variety of situations, from physical objects to emotional states of being. Whether describing an unbroken chain, an unbroken heart, or an unbroken record, these synonyms all capture the idea of a state of being that is whole and undisturbed.