Mute, unable to speak for physical or psychological reasons.(adjective)
Present participle of unspeak.(verb)
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Use "unspeaking" in a sentence
"Passing girls chatter, a feather falls with a mighty explosion, but he himself is silent, unspeaking and, as he perceives himself, unspeakable."
"And when the hard-harmonizing trio of Case, Newman and Kathryn Calder alighted on one of those widescreen choruses that Newman seems to be able to write while bushing his teeth, you had to imagine that even Dan Bejar -- the group's unsmiling, unspeaking second frontman, who kept himself hidden when he wasn't singing one of his own creations -- was fighting the urge to sing along."
"And when the hard-harmonizing trio of Case, Newman, and Kathryn Calder alighted on one of those widescreen choruses that Newman seems to be able to write while brushing his teeth, you had to imagine that even Dan Bejar -- the group's unsmiling, unspeaking second frontman, who kept himself hidden when he wasn't singing one of his own -- was fighting the urge to sing along."