irretrievable

From ir- +‎ retrievable.

irretrievable (comparative more irretrievable, superlative most irretrievable)

1. Not retrievable; irrecoverable; irreparable

   an irretrievable loss

   • 1844, The Western Law Journal, volume 2, page 272:

     But, having hung him, you cannot unhang him. With all your liability to err, you dare to take a step, which, if wrong at all, is infinitely so, because irretrievable.

• William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “irretrievable”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC.
• “irretrievable”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.