thoughtless

[thawt-lis]

adjective

1. lacking in consideration for others; inconsiderate; tactless.

   a thoughtless remark.

   Synonyms: neglectful, negligent

2. characterized by or showing lack of thought: think: thought.

   a shallow, thoughtless book.

3. not thinking enough; careless or heedless.

   thoughtless of his health.

   Synonyms: remiss, inattentive

4. devoid of or lacking capacity for thought. think. thought.

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

Other Word Forms

• thoughtlessly adverb
• thoughtlessness noun

Word History and Origins

Origin of thoughtless¹

First recorded in 1585–95; thought ¹ + -less

Example Sentences

Worse, I have seen thoughtless men stand at the obelisk and relieve themselves on it.

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Am I wrong to think they are thoughtless?

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“Programs referred to as a ‘safety net’ are anything but when they can be removed with a thoughtless, vague message, or scribble from a permanent marker.

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"People dismissing all AI-generated content as slop right now are being thoughtless, because there's a lot of great, compelling AI content that deserves their interest."

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Perkins has sought specific training on how to sort out credible threats online from thoughtless reposts, allowing her to focus on students who pose real danger instead of punishing everyone.

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Related Words

• careless 
• foolish 
• ill-advised 
• ill-considered 
• irrational 
• mindless 
• reckless 
• senseless 
• stupid