incurable
He advocated euthanasia for the incurably ill.
After being pronounced incurably fat, she began reading nutrition books.
She was incurably sentimental about wildlife.
He loved to race and was incurably competitive.

SMART Vocabulary: related words and phrases

Disease & illness - general words
advanced
aggressiveness
autoimmune disease
bilharzia
bilharziasis
complication
fulminating
gestational
hyperendemic
hypochondriac
iatrogenic
industrial disease
life-threatening
second degree
secretory
seizure
serial interval
snail fever
subvariant
untreated

You can also find related words, phrases, and synonyms in the topics:

Continuous & permanent
Not able to be changed