inoperable
Inoperable (adj) means describing a medical condition too advanced or dangerous to be treated by surgery. Example: “The tumor was deemed inoperable, so doctors turned to chemotherapy.”
How to use inoperable
Learner’s notesIn plain EnglishEither "cannot be operated on" (medically) or "does not work" (mechanically).
In medical contexts inoperable almost always means the condition, not the patient, cannot be treated surgically.
Fill the gap
Can you complete this real example?
The tumor was deemed _____, so doctors turned to chemotherapy.
Etymology
Formed from in- ("not") plus operable.