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Definition of unthinking - 4 dictionary results

un⋅think⋅ing

  [uhn-thing-king]
Use unthinking in a Sentence
–adjective
1. thoughtless; heedless; inconsiderate: an unthinking, tactless person.
2. indicating lack of thought or reflection: a dull, unthinking expression on his face.
3. not endowed with the faculty of thought: unthinking matter.
4. not exercising thought; not given to reflection: This book will not profit an unthinking person.
5. not thinking; unmindful: chores done in an unthinking manner.
Origin:
1670–80; un- 1 + thinking

Related forms:
un⋅think⋅ing⋅ly, adverb
un⋅think⋅ing⋅ness, noun

un⋅think

  [uhn-thingk] verb, -thought, -think⋅ing.
–verb (used without object)
1. to end one's thought or reverse the process of thought.
–verb (used with object)
2. to dispel from the mind: Unthink your thoughts.
Origin:
1590–1600; un- 2 + think 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To unthinking
un·think   (ŭn-thĭngk')   
tr.v.   un·thought (-thôt'), un·think·ing, un·thinks
To dismiss from the mind; disregard.
un·think·ing   (ŭn'thĭng'kĭng)   
adj.  

  1. Not taking due thought; thoughtless or heedless: proceeded, unthinking, into the trap.

  2. Exhibiting a lack of thought: unthinking bravado.

  3. Incapable of the power of thought.

un·think'ing·ly adv., un·think'ing·ness n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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