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
this is unachievable
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "this is unachievable" is correct and usable in written English.
You can use it to express that something cannot be accomplished or attained, often in discussions about goals or tasks. Example: "After reviewing the project requirements, I must conclude that this is unachievable given our current resources."
✓ Grammatically correct
Science
News & Media
Alternative expressions(2)
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
4 human-written examples
It goes without saying that this is unachievable... or is it?
News & Media
Unfortunately in many advanced solid tumours this is unachievable, especially in the case of NSCLC patients.
Science
An expression array capable of detecting the entire human transcriptome would yield substantial benefits; however, this is unachievable with the current capacity limitations of microarray technology.
Science
This is especially important given that the aim of e-health is often cited as empowering the patient and equalising their status with the practitioner [ 41], and this is unachievable if the ePHR is simply tokenism.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
The process provides deposition of coatings, films and layers on small-sized parts and components, including those with fine sections, this being unachievable with any other methods.
Science
The troika report is certain to state that this goal is unachievable.
News & Media
On the basis of this vote, a breakthrough is unachievable under first-past-the-post.
News & Media
"Having spoken to the Ascot course management, if the day is to continue to attract the best horses and following confirmation that the covers project is unachievable, this seems like a viable solution.
News & Media
In this cycle, 95 90 purity-recovery is unachievable at PL above 0.04 bar.
Science
"A routine seven-day NHS is unachievable within the current workforce and financial pressures," she said.
News & Media
Significantly, Mr. Fayyad was suggesting that if a two-state solution is unachievable, the alternative is a single binational state.
News & Media
Expert writing Tips
Best practice
Use "this is unachievable" to convey a definitive lack of possibility. This phrase is appropriate when assessing the feasibility of goals, plans, or expectations, especially when based on concrete limitations or evidence.
Common error
Avoid using "this is unachievable" as a knee-jerk reaction to challenges. Ensure your assessment considers all potential resources and strategies before concluding that success is impossible. Prematurely labeling something as unachievable can stifle innovation and problem-solving efforts.
Source & Trust
87%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "this is unachievable" functions as a declarative statement expressing impossibility. It serves to convey that a particular goal or objective cannot be accomplished. According to Ludwig AI, the phrase is grammatically sound and clear. Examples show it used in contexts where constraints prevent success.
Frequent in
Science
50%
News & Media
50%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "this is unachievable" is a grammatically correct and clear way to express that something is impossible to accomplish. Ludwig AI confirms its validity and usefulness in written English. While categorized as rare in terms of frequency, it is commonly found in science and news contexts. It is important to note that while the phrase is a valid expression, alternatives such as "this is impossible", "this is unattainable", and "this is not feasible" may be more appropriate depending on the specific nuance you wish to convey. When using the phrase, ensure your assessment is based on thorough consideration of limitations rather than a premature dismissal of possibilities.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
This is unattainable
Emphasizes the impossibility of reaching or obtaining something.
This is impossible
A more direct and forceful way of stating that something cannot happen or be done.
This cannot be realized
Focuses on the lack of potential for something to become a reality.
This is out of reach
Suggests that something is beyond one's grasp or capability.
There's no way to achieve this
Focuses on the lack of any viable method to accomplish something.
This is not feasible
Highlights the impracticality or unsuitability of something.
This is beyond our capabilities
Indicates that a task exceeds the abilities of a group or individual.
This is wishful thinking
Implies that an idea is unrealistic and unlikely to happen.
This is a pipe dream
Similar to wishful thinking, suggesting an unrealistic or fanciful hope.
It's a lost cause
Indicates a situation where success is no longer possible.
FAQs
What does "this is unachievable" mean?
The phrase "this is unachievable" means that something is impossible to accomplish or attain. It indicates that a goal, task, or outcome is beyond the realm of possibility.
When is it appropriate to use the phrase "this is unachievable"?
It's appropriate to use "this is unachievable" when there are concrete limitations or insurmountable obstacles preventing the realization of a goal or task. Consider factors like resources, capabilities, and external constraints.
What are some alternatives to saying "this is unachievable"?
You can use alternatives like "this is impossible", "this is unattainable", or "this is not feasible" depending on the specific context.
Is "this is unachievable" more or less formal than "this is impossible"?
"This is impossible" is generally considered more direct and forceful. "This is unachievable" can sometimes carry a slightly more nuanced connotation, implying a careful assessment has led to the conclusion that success is not possible, but the difference in formality is minimal.
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
4.1/5
Expert rating
Real-world application tested