mudo

mudo
moo'-doh
mute, silent, speechless
Examples
1. Mi prima nació muda. Ella habla usando la lengua de signos.
My cousin was born mute. She speaks using sign language.
 
2. Cuando finalmente conocí a mi autora favorita, me quedé mudo de nervios en su presencia.
When I finally met my favorite author, I was rendered speechless by nerves in her presence.