thought·less | \ˈthȯt-ləs \

Definition of thoughtless 

1 : lacking concern for others : inconsiderate rude and thoughtless behavior a thoughtless remark

2a : insufficiently alert : careless

b : reckless, rash thoughtless actions

3 : devoid of thought : insensate

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Other Words from thoughtless

thoughtlessly adverb
thoughtlessness noun

Examples of thoughtless in a Sentence

a selfish and thoughtless person always making thoughtless comments that hurt other people's feelings

Recent Examples on the Web

As the New York Times tells it, one prominent company, H&M, is seeking greater diversity as a hedge against thoughtless decisions. David Lazarus,, "California Inc.: Hollywood is courted by a newly moviegoing Saudi Arabia," 2 Apr. 2018 Here was a petty, meritless, underhanded politician undone by a petty, thoughtless, underhanded thing. David Murphy,, "Bryan Colangelo's downfall is stunning, but the Sixers did the right thing | David Murphy," 7 June 2018 Just as in real life, bad behavior by thoughtless people has followed us into the online universe. Dwight Silverman, San Antonio Express-News, "How to be a good internet citizen," 3 July 2018 Hence, the almost weekly public apologies of personalities both famous and faint for crude, rude, thoughtless or worse electronic missives., "A long tradition: Americans behaving badly," 5 July 2018 And what could make this whole situation brighter than a thoughtless response? Lucy Wood, Marie Claire, "Scarlett Johansson Responds to 'Rub & Tug' Criticism With a Tone-Deaf Statement," 4 July 2018 Rents have risen dramatically, though this can be the fault of thoughtless regulations which hinder supply more than the malevolence of gentrifiers. The Economist, "In praise of gentrification," 21 June 2018 And people are truly and remarkably insensitive and thoughtless. Amanda Stern,, "I Lived With Anxiety So Debilitating It Kept Me From Going Outside—Until I Finally Received a Surprising Diagnosis," 19 June 2018 Yet by then the head was bloodless in the dust, sightless, thoughtless, and beyond words. John Kass,, "The Khan of Madiganistan keeps his head by severing another's," 7 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'thoughtless.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of thoughtless

1544, in the meaning defined at sense 2a

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Last Updated

10 Oct 2018

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Time Traveler for thoughtless

The first known use of thoughtless was in 1544

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More Definitions for thoughtless



English Language Learners Definition of thoughtless

: not showing concern for the needs or feelings of other people


thought·less | \ˈthȯt-ləs \

Kids Definition of thoughtless

1 : not considerate of others thoughtless behavior

2 : not careful and alert

3 : done without thinking thoughtless actions

Other Words from thoughtless

thoughtlessly adverb
thoughtlessness noun

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More from Merriam-Webster on thoughtless

Thesaurus: All synonyms and antonyms for thoughtless

Spanish Central: Translation of thoughtless

Nglish: Translation of thoughtless for Spanish Speakers

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