2 synonym groups for Anhaltend

ongoing issues, continuous difficulties, chronic problems, enduring issues, lasting difficulties, perpetual problems, unrelenting issues, constant difficulties, recurring problems, sustained issues, unceasing difficulties, incessant problems, never-ending issues, relentless difficulties, interminable problems, ceaseless issues, unending difficulties, persistent issues, ongoing difficulties, continuous problems, chronic issues, enduring problems, lasting issues, perpetual difficulties, unrelenting problems, constant issues, recurring difficulties, sustained problems, unceasing issues, incessant difficulties, never-ending problems, relentless issues, interminable difficulties, ceaseless problems, unending issues [x]

tolerable, bearable, sustainable, manageable, sufferable, supportable, acceptable, livable, withstandable, tolerative, endurative, resistible, survivable, tenable, feasible, viable, admissible, permissible, allowable [x]