inkless

/ˈɪŋkləs/
adjective
  1. Having no ink; not using ink.
    • The pen was inkless, so I couldn't write my name.
    • He found an inkless marker in the drawer and threw it away.
    • Some modern printers are inkless and use heat instead.
Synonyms
What does "inkless" mean? | whatsthatwordmean | whatsthatwordmean