tongueless

1. lacking a tongue;

"tongueless moccasins"

2. lacking power of speech

3. expressed without speech; especially because words would be inappropriate or inadequate;

"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