RichThesaurus
unhale
vs
unserviceable
unhale
adj
Unsound; not hale; unhealthy.
unserviceable
adj
Unusable; of no use.
Not working (machinery, etc).
Impractical.
How often have the words
unhale
and
unserviceable
occurred in a corpus of books?
(source:
Google Ngram Viewer
)