unuttered

/ʌnˈʌtərd/
adjective
  1. Not spoken or expressed aloud; kept silent.
    • He gave her an unuttered apology with a simple nod.
    • Her unuttered thoughts about the proposal remained a secret.
    • The unuttered words hung in the air between them, heavy with meaning.
What does "unuttered" mean? | whatsthatwordmean | whatsthatwordmean