incurable

In a medical context, this term carries a heavy, clinical weight, signaling a definitive lack of hope for recovery. It is used to describe conditions where the pathology is too advanced or the disease too aggressive for current medicine to reverse, often shifting the focus of care from cure to palliation.

When applied to personality traits, the word shifts into a more lighthearted or ironic register. Describing someone as an "incurable romantic" or an "incurable optimist" suggests a stubborn, ingrained nature that is resistant to logic or experience. In these cases, the "disease" is a metaphor for a quirk of character that the person likely does not wish to change.