\Un*string"\, v. t. [1st pref. un- + string.] 1. To deprive of a string or strings; also, to take from a string; as, to unstring beads. 2. To loosen the string or strings of; as, to unstring a harp or a bow. 3. To relax the tension of; to loosen. ``His garland they unstring.'' --Dryden. Used also figuratively; as, his nerves were unstrung by fear.