Finding synonyms for the word "cureless" can help add variety and nuance to one's writing. Some possible synonyms for "cureless" include "incurable," "irremediable," and "hopeless." "Incurable" refers to a condition or disease that cannot be fully treated or healed, while "irremediable" indicates that there is no possible solution or remedy. "Hopeless" may be used more broadly to describe a situation that is beyond repair or resolution. Other synonyms for "cureless" include "chronic," "perennial," and "endemic," which all suggest a condition that persists or remains intractable despite efforts to treat or alleviate it.