unthinking

[ uhn-thing-king ]
/ ʌnˈθɪŋ kɪŋ /

adjective

thoughtless; heedless; inconsiderate: an unthinking, tactless person.
indicating lack of thought or reflection: a dull, unthinking expression on his face.
not endowed with the faculty of thought: unthinking matter.
not exercising thought; not given to reflection: This book will not profit an unthinking person.
not thinking; unmindful: chores done in an unthinking manner.

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Origin of unthinking

First recorded in 1670–80; un-1 + thinking

OTHER WORDS FROM unthinking

un·think·ing·ly, adverbun·think·ing·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for unthinking

British Dictionary definitions for unthinking

unthinking
/ (ʌnˈθɪŋkɪŋ) /

adjective

lacking thoughtfulness; inconsiderate
heedless; inadvertentit was done in an unthinking moment
not thinking or able to think

Derived forms of unthinking

unthinkingly, adverbunthinkingness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012