ad. quietly; not in a manner inclined to speaking.
The Century Dictionary and Cyclopedia
In a taciturn manner; with little speech.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. without speaking
Word Usage
"Then How-ha's eyes went blear as she traversed the simple windings of her own brain, inspecting the bare shelves taciturnly stored with the impressions of a meagre life."