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
ill effects
Grammar usage guide and real-world examplesUSAGE SUMMARY
'ill effects' is an acceptable and usable phrase in written English.
It is typically used to indicate undesirable or negative consequences or events as a result of a particular action or occurrence. For example, "The mayor was concerned about the ill effects of the new policies on the local economy."
✓ Grammatically correct
News & Media
Science
Formal & Business
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
Bats are an effective carrier for Nipah because they don't suffer ill effects from the disease.
News & Media
But ill effects remain.
News & Media
Speed has other ill effects.
News & Media
He suffered no ill effects.
News & Media
The Internet has experienced the ill effects.
News & Media
They showed no ill effects afterward.
News & Media
And so far, no ill effects.
News & Media
They are unaware of its ill effects.
News & Media
But he had suffered no ill effects.
News & Media
Other families, however, reported unmistakable ill effects.
News & Media
Did you notice any ill effects?
News & Media
Expert writing Tips
Best practice
When discussing the results of a study or experiment, use "ill effects" to clearly communicate the negative or harmful outcomes observed. For example: "The study revealed the "ill effects" of prolonged exposure to the chemical."
Common error
Avoid using "ill effects" when referring to minor inconveniences or temporary discomforts. "Ill effects" implies significant negative consequences, not just slight annoyances. Use more appropriate terms like "inconveniences" or "minor side effects" for less severe situations.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "ill effects" functions primarily as a noun phrase. It typically serves as the object of a verb or preposition, describing the negative consequences or adverse results of a particular action, substance, or situation. Ludwig AI confirms its wide usage in various contexts.
Frequent in
News & Media
51%
Science
24%
Formal & Business
9%
Less common in
Encyclopedias
4%
Wiki
4%
Academia
4%
Ludwig's WRAP-UP
In summary, "ill effects" is a noun phrase commonly used to describe negative consequences or adverse results. Ludwig AI analysis confirms that it is grammatically correct and frequently used in various contexts, particularly in News & Media and Science. When writing, it's important to reserve "ill effects" for situations with significant negative outcomes, avoiding its use for minor inconveniences. Alternatives like "adverse effects" or "negative consequences" may be suitable depending on the specific context. The phrase serves to highlight the undesirable impacts of a particular action or situation.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
adverse effects
Replaces 'ill' with 'adverse', maintaining a formal tone and emphasizing negative impact.
negative consequences
Substitutes both 'ill' and 'effects' with more general terms, broadening the scope of impact.
harmful repercussions
Emphasizes the damaging and far-reaching nature of the consequences.
detrimental impacts
Highlights the damaging and lasting influence of the effects.
unfavorable outcomes
Focuses on the undesirable results or end states.
adverse outcomes
It is similar to 'unfavorable outcomes' but with a slightly more formal tone.
damaging results
Directly points to the harm caused by the results.
deleterious consequences
Uses a more formal and scientific term to denote harmful effects.
undesirable side effects
Specifically refers to negative effects that occur alongside a primary effect, often in a medical context.
negative externalities
Emphasizes the uncompensated costs imposed on third parties as a result of certain actions.
FAQs
How can I use "ill effects" in a sentence?
Use "ill effects" to describe the negative consequences or harmful results of something. For instance, "The doctor warned about the "ill effects" of smoking".
What are some alternatives to saying "ill effects"?
You can use alternatives like "adverse effects", "negative consequences", or "harmful repercussions" depending on the context.
Is it correct to say "good effects" instead of "positive effects", similar to "ill effects"?
While "ill effects" is a common and accepted phrase, "good effects" is less frequently used. "Positive effects" is generally preferred and more widely understood in formal writing. The contrast isn't symmetrical due to convention.
What is the difference between "side effects" and "ill effects"?
"Side effects" refer to any unintended consequence of a treatment or action, which can be positive, neutral, or negative. "Ill effects" specifically denote negative or harmful consequences. Therefore, all "ill effects" are side effects, but not all side effects are "ill effects".
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested