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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
i feel blue
Grammar usage guide and real-world examplesUSAGE SUMMARY
"I feel blue" is correct and it is commonly used in both spoken and written English.
It is an expression used to indicate feeling sad or down. Example: The break-up was really hard on me and now I'm feeling blue.
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(6)
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
8 human-written examples
But if he said I feel blue, that's static.
News & Media
Elevator Pitch It's the end of the world as we know it...and I feel blue.
News & Media
Now, when I feel blue, I tell myself, "I'm an adult.
News & Media
"All John said was, 'I feel blue.' Ringo was chuckly and amusing, and I was quite overcome that I was actually in their presence.
News & Media
But in the meantime, if ever I feel blue about the state of nursing or the way that nurses are portrayed, I visit the wards, and read the cards lining the pin-boards outside the coffee rooms.
News & Media
"I explore underground when I feel blue.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
52 human-written examples
After he died, I felt blue.' Five participants expressed feeling terrible loneliness and stress.
Science
Whenever I felt blue, I'd saunter over to Hudson and Jane Street, a few blocks from my Greenwich Village apartment, and hang out at Piccolo Angolo, the family run restaurant for 22 years, where the omnipresent persona of Renato Migliorini would be sitting outside the restaurant, hanging out in his white apron, observing the passers-by.
News & Media
For instance, "I feel downhearted and blue " translated by an equivalent of "I feel downhearted and sad" or "I feel downhearted and depressed".
I feel sorry for Western European blue collar workers.
News & Media
They tell me that I must feel blue because something "essentially Christmas" or "properly winter" is missing.
News & Media
Expert writing Tips
Best practice
Use "I feel blue" to express a general sense of sadness or melancholy. It's appropriate in informal settings and writing where a less direct expression of emotion is desired.
Common error
While "I feel blue" is a common idiom, overuse can make your writing sound cliché. Vary your language by using synonyms like "sad", "down", or more descriptive phrases depending on the specific emotion you want to convey.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I feel blue" functions as an intransitive verb phrase, where "feel" is a linking verb connecting the subject "I" to the predicate adjective "blue". It describes a state of being or an emotional condition. As Ludwig AI confirms, it's a common expression.
Frequent in
News & Media
68%
Wiki
15%
Science
11%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "I feel blue" is a grammatically sound and commonly understood idiom for expressing sadness or melancholy. Ludwig AI confirms its correctness and prevalence in both spoken and written English. While most suitable for informal contexts, it's important to avoid overuse and consider more descriptive language when precision is needed. As seen in the provided examples from Ludwig, it's frequently used in news and media, demonstrating its widespread recognition and casual nature. When writing, remember to vary your language and choose alternatives like "I'm feeling down" or "I'm feeling sad" to keep your writing fresh and engaging.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
i'm feeling down
Uses "down" as a synonym for sad or blue.
i'm feeling sad
Replaces the idiomatic "blue" with the more direct "sad".
i'm feeling melancholic
Substitutes "blue" with a more formal term, "melancholic".
i'm feeling gloomy
Uses "gloomy" to describe a state of unhappiness.
i have the blues
Employs a different idiom to convey a similar sense of sadness or depression.
i'm in low spirits
Replaces the color metaphor with a reference to emotional state.
i'm feeling despondent
Conveys a sense of hopelessness and discouragement.
i'm disheartened
Suggests a loss of enthusiasm or motivation due to disappointment.
i'm crestfallen
Indicates disappointment and sadness, often due to failure.
i'm in a funk
Indicates a temporary state of unhappiness or malaise.
FAQs
What does it mean when someone says "I feel blue"?
Saying "I feel blue" means that someone is experiencing feelings of sadness, melancholy, or depression. It's an idiomatic expression used to describe a low mood.
How can I use "I feel blue" in a sentence?
You can use "I feel blue" to express your own sadness or to describe someone else's mood. For example, "After the movie ended, "I felt blue" because it was so poignant."
What are some alternatives to saying "I feel blue"?
You can use alternatives like "I'm feeling down", "I'm feeling sad", or "I have the blues" depending on the context and the intensity of the emotion.
Is it appropriate to use "I feel blue" in formal writing?
While "I feel blue" is widely understood, it's generally more appropriate for informal settings. In formal writing, consider using more direct and specific language to describe your emotions, such as "I am experiencing sadness" or "I am feeling despondent".
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested