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
grew weak
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "grew weak" is correct and usable in written English.
It can be used to describe a gradual decline in strength, health, or effectiveness over time. Example: "As the years passed, his once formidable physique grew weak, leaving him unable to perform the tasks he once excelled at."
✓ Grammatically correct
News & Media
Encyclopedias
Formal & Business
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
17 human-written examples
His knees grew weak.
News & Media
Pakistan's cocooned economy grew weak and uncompetitive.
News & Media
His right leg grew weak, and his foot began to droop.
News & Media
He was a promising talent, but sophomore year he suddenly grew weak and dizzy.
News & Media
His father, a laborer, grew weak and was sent to the gas chamber.
News & Media
She visited the Sheppard family in recent years, after Bob grew weak and stopped going to Yankee Stadium.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
43 human-written examples
Scott, a 27-year-old who leads with his fists, grew weak-kneed when he took the ice at United Center for his first official practice with the Blackhawks and was greeted by an announced crowd of 18,000.
News & Media
I grew weaker with every passing day.
News & Media
Month by month, he grew weaker.
News & Media
As my body grew weaker, my mind grew stronger.
News & Media
After the fourth day, she grew weaker and weaker, until she could barely lift her head.
News & Media
Expert writing Tips
Best practice
When describing a gradual decline in health or strength, consider using "grew weak" to convey a sense of prolonged deterioration. For example: "After months of illness, his body "grew weak".
Common error
Avoid using "grew weak" to describe sudden instances of weakness. The phrase suggests a gradual process, not an immediate loss of strength. Instead of saying 'He "grew weak" and collapsed,' use 'He suddenly became weak and collapsed'.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "grew weak" functions as a verb phrase, indicating a process of becoming weaker. Ludwig confirms its grammatical correctness. It typically modifies a noun or pronoun, describing a gradual decline in strength, health, or effectiveness.
Frequent in
News & Media
50%
Encyclopedias
20%
Formal & Business
10%
Less common in
Wiki
5%
Science & Research
5%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "grew weak" is a grammatically sound and frequently used verb phrase, as indicated by Ludwig. It serves to describe a gradual reduction in strength, health, or effectiveness over time. Predominantly found in news and media, encyclopedias, and formal business contexts, its neutral register makes it appropriate for a variety of communication styles. When using "grew weak", ensure it accurately reflects a gradual process rather than a sudden change. Consider alternatives such as "became feeble" or "lost strength" for nuances in meaning.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
became feeble
Implies a loss of strength and vigor, often associated with aging.
lost strength
Directly indicates a reduction in physical power.
declined in health
Focuses on a deterioration of physical well-being.
diminished in strength
Suggests a gradual reduction in force or power.
faded away
Implies a gradual disappearance or weakening, often used metaphorically.
became frail
Indicates a state of physical weakness and vulnerability.
withered
Suggests a decline in vitality, often used in relation to plants or people.
deteriorated
Describes a process of worsening or decaying.
succumbed to weakness
Emphasizes the yielding to a lack of strength or resistance.
atrophied
Indicates a wasting away of bodily tissue or organs.
FAQs
How can I use "grew weak" in a sentence?
Use "grew weak" to describe a gradual decline in strength, health, or effectiveness over time. For instance, "As the disease progressed, her body "grew weak"".
What are some alternatives to "grew weak"?
Depending on the context, you can use phrases like "became feeble", "lost strength", or "declined in health" as alternatives to "grew weak".
Is it correct to say "grew weakly"?
No, "grew weakly" is not typically used. The correct phrase is ""grew weak"", where "weak" functions as an adjective describing the state of becoming. Saying "grew weakly" would imply growing in a weak manner, which is grammatically awkward.
What is the difference between "grew weak" and "became weak"?
"Grew weak" implies a more gradual process of weakening over time, while "became weak" can suggest a more sudden or immediate onset of weakness. The choice depends on the context and the emphasis you want to convey.
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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested