definitions
  • synonyms

unthinking

[ uhn-thing-king ]
/ ʌnˈθɪŋ kɪŋ /
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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.

RELATED WORDS

feckless, foolish, heedless, impulsive, inadvertent, inconsiderate, indelicate, insensitive, instinctive, mechanical, negligent, oblivious, outrageous, rash, rude, selfish, senseless, tactless, thoughtless, uncaring

Nearby words

unthankful, unthatch, unthaw, unthink, unthinkable, unthinking, unthought, unthought-of, unthread, unthrifty, unthrone

Origin of unthinking

First recorded in 1670–80; un-1 + thinking
Related formsun·think·ing·ly, adverbun·think·ing·ness, noun

Definition for unthinking (2 of 2)

unthink

[ uhn-thingk ]
/ ʌnˈθɪŋk /

verb (used without object), un·thought, un·think·ing.

to end one's thought or reverse the process of thought.

verb (used with object), un·thought, un·think·ing.

to dispel from the mind: Unthink your thoughts.

Origin of unthink

First recorded in 1590–1600; un-2 + think1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unthinking

British Dictionary definitions for unthinking (1 of 2)

unthinking

/ (ʌnˈθɪŋkɪŋ) /

adjective

lacking thoughtfulness; inconsiderate
heedless; inadvertentit was done in an unthinking moment
not thinking or able to think
Derived Formsunthinkingly, adverbunthinkingness, noun

British Dictionary definitions for unthinking (2 of 2)

unthink

/ (ʌnˈθɪŋk) /

verb -thinks, -thinking or -thought (tr)

to reverse one's opinion about
to dispel from the mind
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

Word Origin and History for unthinking

unthinking

adj.

"unreflecting," 1670s, from un- + present participle of think.

Online Etymology Dictionary, © 2010 Douglas Harper