unthinking

[ uhn-thing-king ]

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; think; unmindful:

   chores done in an unthinking manner.

unthinking

/ ʌnˈθɪŋkɪŋ /

adjective

1. lacking thoughtfulness; inconsiderate
2. heedless; inadvertent

   it was done in an unthinking moment

3. not thinking or able to think

Derived Forms

• unˈthinkingness, noun
• unˈthinkingly, adverb

Other Words From

• un·thinking·ly adverb
• un·thinking·ness noun

Word History and Origins

Origin of unthinking¹

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

Example Sentences

He said she had been worried about how politics was "coarsening", becoming too "tribal and unthinking".

From BBC

Turning to "Holidays in the Sun," this track offers a less graphic critique of unthinking behaviors than “Bodies,” instead using consumerist culture and social disillusionment for its targets.

From Salon

In the first place, Mr. DeSantis needs to win over these unthinking “listless vessels” if he wants to win the nomination.

From Washington Times

The bits we learn of Herschel’s backstory, including a childhood trauma he has only barely begun dealing with, make him more empathetic — until he commits his next unthinking act.

From Los Angeles Times

The conventional wisdom about insects has been that they are automatons—unthinking, unfeeling creatures whose behavior is entirely hardwired.

From Scientific American