unknowledged

From un- +‎ knowledged.

unknowledged (not comparable)

1. (obsolete) Not acknowledged or recognised.
   • 1603, Ben Jonson, The Entertainment at Althorp:

     For which bounty to us lent
     Of him unknowledg'd or unsent.

2. lacking knowledge

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