mute

Adjective

• unable to speak because of hereditary deafness

• expressed without speech
  • a mute appeal
    
  • a silent curse
    
  • best grief is tongueless- Emily Dickinson
    
  • the words stopped at her lips unsounded
    
  • unspoken grief
    
  • choking exasperation and wordless shame- Thomas Wolfe
    

Noun

• a device used to soften the tone of a musical instrument

• a deaf person who is unable to speak

Verb

• deaden (a sound or noise), especially by wrapping

Related words

• Synonyms: 
  dumb , silent , tongueless , unspoken , wordless , deaf-mute , deaf-and-dumb person , muffle , dull , damp , dampen , tone down