unpredict

From un- +‎ predict.

unpredict (third-person singular simple present unpredicts, present participle unpredicting, simple past and past participle unpredicted)

1. (transitive) To retract or undo a previous prediction.
   • 1671, John Milton, “The First Book”, in Paradise Regain’d. A Poem. In IV Books. To which is Added, Samson Agonistes, London: […] J[ohn] M[acock] for John Starkey […], →OCLC, page 3:

     Means I must use, thou say'st; prediction else
     Will unpredict, and fail me of the throne

• “unpredict”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.