long-lasting Synonyms

durable lasting prolonged long-lived stable stainless solid sempiternal steadfast made to last resilient reclaimable protracted persistent persisting perpetual stout strong sturdy long-drawn-out hard-wearing long-standing long-term heavy-duty unfading agelong never-ending unending undying tough sustained substantial subacute permanent perennial everlasting evergreen eternal enduring durant dura diuturnal deathless continuing continued constant chronic ageless extended firm