adj. 25B6; adjective
an incurable illness : UNTREATABLE, inoperable, irremediable; terminal, fatal, mortal; chronic.
an incurable romantic : INVETERATE, dyed-in-the-wool, confirmed, established, long-established, long-standing, absolute, complete, utter, thorough, thoroughgoing, out-and-out, through and through; unashamed, unapologetic, unrepentant, incorrigible, hopeless.