Silent™

Why not both?

you better be sick, deaf or mute a-aron

Mute for sure. Deaf people are effectively mute. They can't hear themselves so they don't know whether or not they're talking properly, in the right tones and volume, and they also never really learn to speak if they're death from birth or a young age. Mute you can easily get around with writing, text to speech, sign language, etc. while still having all the benefits of hearing.