v. t. [ 1st pref. un- + think. ] To recall or take back, as something thought. Shak. [ 1913 Webster ]
n. [ Pref. un- + thinker. ] A person who does not think, or does not think wisely. [ 1913 Webster ]
a.
With earnest eyes, and round unthinking face,
He first the snuffbox opened, then the case. Pope. [ 1913 Webster ]
--