The term "most deepsixed" refers to something that has been completely rejected, dismissed, or buried. There are several synonyms for this expression, including "abandoned," "discarded," "dismissed," "neglected," and "forgotten." "Abandoned" implies that something has been left behind or forsaken, while "discarded" suggests that something has been thrown away or deemed worthless. "Dismissed" indicates that something has been disregarded or rejected outright, and "neglected" suggests that something has been ignored or left unattended. "Forgotten" implies that something has been completely overlooked or erased from memory. Overall, these synonyms for "most deepsixed" convey a sense of finality and rejection.