subvocal

/sʌbˈvoʊkəl/
adjective
  1. Relating to or characterized by the unspoken or silent articulation of words, as in thinking or reading without making sound.
    • Subvocal training can help improve reading speed by reducing inner speech.
    • The device detected subvocal muscle movements in the throat during silent thought.
    • Many readers engage in subvocal speech, silently pronouncing each word as they read.
Synonyms
Antonyms
What does "subvocal" mean? | whatsthatwordmean | whatsthatwordmean