inoperable
1. [ adjective ] not able to perform its normal function
Synonyms: unusable
Related terms: unserviceable
2. [ adjective ] (surgery) not suitable for surgery
Examples:

"metastasis has rendered the tumor inoperable"

Related terms: operable
Similar spelling:   invertible
  inappreciable
  inoperative
  infernal
  invertase
  infertile
  infernally
  in_parallel
  inverse
  informer
  in_operation
  inverter
  inverted
  invariable
  informercial
  inversely
  inference