stone blind

/stoʊn blaɪnd/
adjective
  1. Completely blind; unable to see at all.
    • He was born stone-blind and learned to read Braille.
    • The old dog went stone-blind in its final years.
    • Without her glasses, she is practically stone-blind.
What does "stone blind" mean? | whatsthatwordmean | whatsthatwordmean