unifacial

/ˌjunəˈfeɪʃəl/
adjective
  1. Having a design, working, or functional surface on only one side.
    • The artifact is unifacial, meaning only one face shows signs of use.
    • The unifacial stone tool was used for scraping rather than cutting.
    • This unifacial coin is blank on the reverse side.
Antonyms