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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
felt weak
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "felt weak" is correct and usable in written English. You can use it to describe a state of physical or emotional weakness. Example: After the long run, I felt weak and needed to rest. Alternative expressions include "felt fatigued" and "felt powerless."
✓ Grammatically correct
News & Media
Science
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
60 human-written examples
Suddenly, my legs felt weak.
News & Media
She felt weak and tired.
News & Media
I felt weak and stupid.
News & Media
Even back then, the interview felt weak.
News & Media
"I felt weak at the knees".
News & Media
He felt weak, could barely move.
News & Media
Superman has felt weak, at certain times.
News & Media
I felt weak and light-headed.
News & Media
I was hardly eating, and I felt weak and tired.
Academia
For several days he felt weak, feverish and irritable.
News & Media
Mr. Chourasia had fractured his arm and felt weak.
News & Media
Expert writing Tips
Best practice
Pair the phrase with specific body parts, such as "my legs felt weak", to provide clearer imagery in narrative writing.
Common error
Avoid using "felt weakly" when you mean to describe the subject's internal state. In the sentence "I felt weak", the word "feel" acts as a linking verb, which requires an adjective. Use "weakly" only if you are describing the manner in which the action of feeling was performed (e.g., "he felt weakly for the light switch").
Source & Trust
92%
Authority and reliability
4.9/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "felt weak" consists of the past tense of the linking verb "feel" followed by the predicate adjective "weak". According to Ludwig AI, it functions as a subject complement, attributing a state of diminished strength or energy to the subject. This structure is common in English for describing sensory perceptions and internal states.
Frequent in
News & Media
75%
Science
12%
Academia
8%
Less common in
Wiki
3%
Formal & Business
1%
Social Media
1%
Ludwig's WRAP-UP
The phrase "felt weak" is a versatile and standard English expression used to describe both physical and emotional states of diminished strength. Ludwig AI confirms its widespread presence in high-authority sources, ranging from medical reports describing patient symptoms to sports journalism detailing athlete fatigue and narrative literature exploring character vulnerability. It is grammatically classified as a linking verb phrase and is always followed by the adjective "weak" rather than the adverb "weakly" when describing the subject's condition. Whether used literally in a clinical setting or figuratively to describe a lack of resolve, the phrase remains a staple of clear and effective English communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
felt fatigued
Provides a more clinical or formal tone often used in medical contexts.
felt drained
Communicates a total depletion of energy or emotional reserves.
felt faint
Specifically implies a sensation of being about to lose consciousness.
felt powerless
Shifts the focus from physical strength to a lack of agency or control.
felt debilitated
A much stronger term indicating that the weakness has significantly impaired function.
felt shaky
Emphasizes the physical instability or trembling that often accompanies weakness.
felt frail
Suggests a long-term state of physical fragility rather than a temporary sensation.
felt listless
Focuses on a lack of spirit, interest or enthusiasm alongside low energy.
felt inadequate
Refers to a psychological or skill-based deficiency rather than physical energy.
felt vulnerable
Highlights the emotional exposure or risk associated with feeling unprotected.
FAQs
What can I say instead of "felt weak"?
You can use more descriptive alternatives like "felt fatigued", "felt drained", or "felt powerless" depending on the specific situation.
How do I use "felt weak" in a sentence?
The phrase is used to link a subject to their state of being. For example: "After the surgery, he "felt weak" for several days."
Is it correct to say "I felt weak at the knees"?
Yes, this is a common idiom used to describe a strong emotional reaction, usually related to love, fear or shock, as seen in examples from The New York Times.
What is the difference between "felt weak" and "felt tired"?
While "felt tired" implies a need for sleep or rest, "felt weak" suggests a lack of physical strength or the inability to perform physical tasks.
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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
92%
Authority and reliability
4.9/5
Expert rating
Real-world application tested