The myth of Sisyphus: origin and meaning
Sisyphean: Perhaps the most direct linguistic legacy of the myth, "Sisyphean" describes any task that is endless and ineffective, mirroring Sisyphus's eternal struggle. Whether it's tackling a never-ending workload or battling an insurmountable challenge, calling something Sisyphean immediately conveys the exhausting and futile nature of the endeavor. (Source: Merriam-Webster Dictionary)