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thoughtless

[thawt-lis] /ˈθɔt lɪs/
adjective
1.
lacking in consideration for others; inconsiderate; tactless:
a thoughtless remark.
2.
characterized by or showing lack of thought:
a shallow, thoughtless book.
3.
not thinking enough; careless or heedless:
thoughtless of his health.
4.
devoid of or lacking capacity for thought.
Origin of thoughtless
1585-1595
First recorded in 1585-95; thought1 + -less
Related forms
thoughtlessly, adverb
thoughtlessness, noun
Synonyms
1. negligent, neglectful. 3. inattentive, remiss.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for thoughtlessness
Contemporary Examples
Historical Examples
  • It has been the result of thoughtlessness, rather than of malignity.

  • However, he now experienced sudden remorse for his thoughtlessness.

  • Fine would then interpose, with a thoughtlessness of which she soon repented.

  • Earnestness is the path of immortality (Nirvana), thoughtlessness the path of death.

    The Dhammapada Unknown
  • People praise earnestness; thoughtlessness is always blamed.

    The Dhammapada Unknown
  • Shocked at his own thoughtlessness, he sprang to his feet and walked hastily to the terrace.

    Lorraine Robert W. Chambers
  • She blamed herself for her thoughtlessness, and resolved that it should not be so in future.

    Janet's Love and Service Margaret M Robertson
  • You and the rest were all guilty of a piece of gross thoughtlessness.

    The Hoosier School-boy Edward Eggleston
  • That's the trouble with thoughtlessness; it never remembers other people.

    The Adventures of Jimmy Skunk

    Thornton W. Burgess
British Dictionary definitions for thoughtlessness

thoughtless

/ˈθɔːtlɪs/
adjective
1.
inconsiderate: a thoughtless remark
2.
having or showing lack of thought: a thoughtless essay
3.
unable to think; not having the power of thought
Derived Forms
thoughtlessly, adverb
thoughtlessness, 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
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Word Origin and History for thoughtlessness

thoughtless

adj.

"inconsiderate," 1794, from thought + -less. Related: Thoughtlessly; thoughtlessness.

Online Etymology Dictionary, © 2010 Douglas Harper
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