UNTHINKING
Un*think"ing, a.
1. Not thinking; not heedful; thoughtless; inconsiderate; as, unthinking youth.
2. Not indicating thought or reflection; thoughtless. With earnest eyes, and round unthinking face, He first the snuffbox opened, then the case. Pope. — Un*think"ing*ly, adv. — Un*think"ing*ness, n.
UNTHREAD
Un*thread", v. t. Etym: [1st pref. un- + thread.]
1. To draw or take out a thread from; as, to unthread a needle.
2. To deprive of ligaments; to loose the ligaments of. He with his bare wand can unthread thy joints. Milton.
3. To make one's way through; to traverse; as, to unthread a devious path. De Quincey.
UNTHRIFT
Un"thrift`, n.
1. Want of thrift; untriftiness; prodigality.
2. An unthrifty. [Obs.] Dryden.