Source : Webster's Revised Unabridged Dictionary (1913)

Irrecuperable \Ir`re*cu"per*a*ble\, a. [L. irrecuperabilis: cf.
   OF. irrecuperable. See {In-} not, and {Recuperate}.]
   Irrecoverable. -- {Ir`re*cu"per*a*bly}, adv.