irredeemable vs recoverable

irredeemable

adj
  • Not able to be cancelled by a payment or converted to another form of currency or financial instrument, especially one considered more secure or reliable. 

  • Not redeemable; not able to be restored, recovered, revoked, or escaped. 

noun
  • A financial instrument that cannot be freely redeemed. 

recoverable

noun
  • Amounts of reinsurance coverage that are due from a reinsurer. 

adj
  • Capable of being regained or recovered. 

  • Restorable from sickness, faintness, danger, etc. 

  • Capable of being brought back to a former condition, or recovered from. 

  • Obtainable from a debtor or possessor 

How often have the words irredeemable and recoverable occurred in a corpus of books? (source: Google Ngram Viewer )