The phrase "almost inoperable" is correct and usable in written English.
It can be used to describe something that is nearly non-functional or on the verge of being unable to operate.
Example: "The old machine is almost inoperable, requiring constant repairs to keep it running."
Alternatives: "nearly unusable" or "practically nonfunctional."
Gary Carter's brain tumors are almost certainly malignant and inoperable.
He has provided public comment before the FDA pedODAC Committee on the topic of biopsy in children with DIPG (an inoperable and almost universally fatal pediatric brain tumor).
The news of Gary Carter's inoperable brain tumors almost moved me to tears, and the prospect of David Einhorn succeeding the Wilpons gives me hope.
Mr. Bloomberg has been a vocal critic of assault weapons, but was willing to accommodate the film industry because "almost all theatrical guns are inoperable and their display is limited to production sets," according to a spokesman, Mark Botnick.
Not only will you void the warranty, but you'll almost invariably render the cartridge inoperable, and there isn't much to see in there anyway.
Absent a time period for ratification by the states, the expiration of which would render the amendment inoperable, it remained dormant for almost 80 years after only six states voted for ratification (Delaware, Maryland, North Carolina, South Carolina, Vermont, and Virginia).
Although 5-year survival rate of CRC has increased, inoperable metastatic colorectal cancer (mCRC) is almost always fatal.
I've had three close relatives die in the past few months, and now I just got word that my aunt, who's been almost like a second mother to me, has inoperable cancer.
In the early days of WASH projects, almost half of the systems in developing countries became inoperable after five years--not because of inadequate technology, but largely because of a failure to capture community interest.
Almost 80% of these cancers were diagnosed at an inoperable phase.
