Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
cold blooded
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "cold blooded" is correct and is used in formal and informal written English.
It is used to describe someone or something that is ruthless, cruel, or indifferent. For example, "The criminal was cold blooded and did not show any remorse for his actions."
✓ Grammatically correct
News & Media
Academia
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
9 human-written examples
COLD BLOODED, by Lisa Jackson.
News & Media
It is horribly cold blooded and cruel.
News & Media
11 1 COLD BLOODED, by Lisa Jackson.
News & Media
Dumanli continues to receive "cold blooded" threats via digital media.
News & Media
It was a cold blooded political calculation.
News & Media
Cold blooded animals are more economical, but lack those advantages.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
51 human-written examples
"Cold-blooded mur-dah!
News & Media
It's cold-blooded realpolitik.
News & Media
Cold-blooded, and probably correct.
News & Media
Both are cold-blooded.
News & Media
"He is cold-blooded.
News & Media
Expert writing Tips
Best practice
Use "cold blooded" to describe actions or individuals that demonstrate a calculated lack of empathy or remorse. Ensure the context supports the intensity of the term.
Common error
Avoid using "cold blooded" to describe minor inconveniences or disagreements. The phrase carries a strong connotation of cruelty and should be reserved for situations where such severity is justified.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "cold blooded" functions primarily as an adjective, modifying nouns to describe a lack of empathy or calculated cruelty. Ludwig AI confirms this with numerous examples of its usage in describing actions and individuals.
Frequent in
News & Media
40%
Academia
20%
Wiki
10%
Less common in
Encyclopedias
5%
Science
15%
Formal & Business
10%
Ludwig's WRAP-UP
In summary, the phrase "cold blooded" is a correct and frequently used adjective phrase in English, indicating a lack of empathy or calculated cruelty. As Ludwig AI confirms, its usage spans across various contexts, including news, academia, and general discourse. While "cold blooded" is appropriate for formal writing, it's essential to consider the intensity of the term and avoid overuse in trivial situations. Alternatives such as "ruthless" or "heartless" can be considered to fine-tune the desired nuance. Remember to reserve this phrase for situations where deliberate lack of empathy is evident.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
ruthless
Single-word adjective emphasizing a lack of pity or compassion.
heartless
Single-word adjective suggesting a lack of feeling or sympathy.
callous
Single-word adjective indicating insensitivity and a disregard for others.
unfeeling
Single-word adjective highlighting a lack of emotional response.
merciless
Single-word adjective stressing the absence of mercy or forgiveness.
without compassion
Phrase emphasizing the absence of sympathetic concern for others.
devoid of empathy
Phrase highlighting a lack of understanding and sharing the feelings of another.
hard-hearted
Adjective indicating a lack of kindness or sympathy.
inhuman
Adjective suggesting a lack of human qualities, especially compassion.
brutal
Adjective implying extreme violence or cruelty.
FAQs
What does "cold blooded" mean?
The term "cold blooded" describes someone or something ruthless, cruel, and lacking empathy. It implies a deliberate and calculated disregard for others' feelings or well-being.
How can I use "cold blooded" in a sentence?
You can use "cold blooded" to describe actions, such as "The murder was a "cold blooded act"", or to describe a person's character, such as "He was a "cold blooded killer"".
What are synonyms for "cold blooded"?
Is it appropriate to use "cold blooded" in formal writing?
Yes, "cold blooded" is appropriate in formal writing when used accurately to describe a lack of empathy or calculated cruelty. However, consider the tone and audience to ensure it aligns with the overall message.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested