Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Marked by or showing lack of due forethought or care; careless: synonym: careless.
- adjective Inconsiderate of the feelings of others.
- adjective Lacking thought.
from The Century Dictionary.
- Devoid of or lacking capacity for thought.
- Unthinking; heedless; careless; giddy.
- Synonyms Heedless, Remiss, etc. (see
negligent ), regardless, inattentive, inconsiderate, unmindful, flighty, harebrained.
from the GNU version of the Collaborative International Dictionary of English.
- adverb Lacking thought; careless; inconsiderate; rash.
- adverb rare Giddy; gay; dissipated.
- adverb Deficient in reasoning power; stupid; dull.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Marked by or showing
lack of duethought or care;careless . - adjective
Inconsiderate ,inattentive . - adjective Lacking thought or
consideration .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adjective without care or thought for others
- adjective showing lack of careful thought
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
Support

Help support Wordnik (and make this page ad-free) by adopting the word thoughtless.
Examples
-
There is never a need to deny the harm that ignorance can cause, and use of the term thoughtless usually refers to some action taken without thoughtful consideration.
Gangaji: Going Inside: Direct Experience Is Like a True Kiss
-
There is never a need to deny the harm that ignorance can cause, and use of the term thoughtless usually refers to some action taken without thoughtful consideration.
Gangaji: Going Inside: Direct Experience Is Like a True Kiss
-
There is never a need to deny the harm that ignorance can cause, and use of the term thoughtless usually refers to some action taken without thoughtful consideration.
Gangaji: Going Inside: Direct Experience Is Like a True Kiss
-
There is never a need to deny the harm that ignorance can cause, and use of the term thoughtless usually refers to some action taken without thoughtful consideration.
-
There is never a need to deny the harm that ignorance can cause, and use of the term thoughtless usually refers to some action taken without thoughtful consideration.
-
It's what I call thoughtless safety, and it brings you about 3 1-2 per cent, as I have already shown you.
-
Thoughtlessness is an attribute, grounded on the facts which we call thoughtless actions; and the proposition is equivalent to this,
-
Thoughtlessness is an attribute grounded on the facts which we call thoughtless actions; and the proposition is equivalent to this,
A System Of Logic, Ratiocinative And Inductive (Vol. 1 of 2)
-
You, whom she had known from an infant, whom she had seen grow up from a period when her notice was an honour, to have you now, in thoughtless spirits, and the pride of the moment, laugh at her, humble her [...] and before others, many of whom (certainly some,) would be entirely guided by your treatment of her.
-
I had never thought about it that way before: will she find the descriptive term thoughtless, or thoughtful?
Comments
Log in or sign up to get involved in the conversation. It's quick and easy.