When searching for synonyms for the word "un-voiced," one may consider using words such as "mute," "silent," "speechless," "wordless," or "voiceless." Each of these words carries a slightly different connotation, but all suggest a lack of spoken communication or vocalization. "Mute" often refers to a person who is physically unable to speak, while "silent" or "speechless" implies a decision not to speak or a situation in which speech is not possible. "Wordless" and "voiceless" both relate to a lack of words or sound, although "voiceless" may also carry a stronger suggestion of oppression or powerlessness.