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
could be unattainable
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "could be unattainable" is correct and usable in written English.
It can be used when discussing the possibility that something may not be achievable or reachable. Example: "While we have high hopes for the project, we must acknowledge that certain goals could be unattainable given our current resources."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(18)
may prove unfeasible
might not be visible
might not be happy
might not be possible
might not be correct
might not be equivalent
might not be ideal
might not be optimal
might not be representative
might not be worthy
might not be practical
might not be attainable
questionable achievability
might be unachievable
might not be doable
might not be feasible
might not be conceivable
might not be achievable
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
1 human-written examples
Finally, it should be noted that while new algorithms are being proposed in the literature on a rather frantic pace, the task of comprehensively comparing algorithms could be unattainable if not futile.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
His method of measuring success would include a 90 percent apprehension rate of illegal crossers at the southern border, as well as the installation of a biometric exit system at all air and sea ports, which immigration advocates worry could be logistically unattainable.
News & Media
Definite knowledge may be unattainable in "Copenhagen".
News & Media
I'm chasing something that may be unattainable.
News & Media
She needs to be unattainable.
News & Media
Those criteria proved to be unattainable.
One could also argue for inclusion of different microbial agents than some of those presented, but I suspect that consensus on any such list would be unattainable.
Science
Be unattainable.
Wiki
While, historically, the mermaid's sexuality could be sinful and unattainable, the mermaid in contemporary culture has become attainable and possible.
News & Media
Such substitution or augmentation could be used when force feedback is unattainable or attenuated due to device limitations or system instability.
Academia
In recent years, advances in mathematical modeling techniques, algorithms for solving mathematical equations and computational power have all combined to make the study of complex phenomenon with large number of inputs possible, which could otherwise have been unattainable with physical experiments.
Expert writing Tips
Best practice
When employing the phrase, ensure the context clearly defines what "unattainable" refers to. Specify the conditions, resources, or factors that might make the goal difficult to reach.
Common error
Avoid using "could be unattainable" when the outcome is already definitively known. This phrase is for expressing a possibility, not stating a fact. If something is unattainable, state it directly; do not use "could be".
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "could be unattainable" functions as a modal phrase expressing a degree of possibility or uncertainty. As Ludwig AI states, the phrase is deemed correct and usable. It modifies a noun or idea, suggesting that its realization is not guaranteed and might face considerable obstacles. Examples in Ludwig demonstrate its use across varied domains.
Frequent in
News & Media
35%
Science
33%
Formal & Business
12%
Less common in
Academia
5%
Wiki
5%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "could be unattainable" effectively communicates a realistic perspective when discussing goals or possibilities, acknowledging potential limitations. As Ludwig AI confirms, the phrase is grammatically sound and widely used. Its neutral tone makes it suitable for various contexts, from news and media to scientific discussions. While it's important to avoid overstating certainty and using it when the outcome is already known, understanding its purpose and register ensures accurate and appropriate usage. Considering semantically similar phrases, such as "might be unachievable" or "potentially out of reach", can offer stylistic variety while preserving the intended meaning.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
might be unachievable
Replaces "could" with "might" and "unattainable" with "unachievable", keeping a similar level of possibility and difficulty.
may be impossible
Uses "may" instead of "could", and replaces "unattainable" with "impossible", emphasizing a stronger sense of improbability.
might not be feasible
Substitutes "unattainable" with "not feasible", focusing on the practicality or viability of achieving something.
potentially out of reach
Replaces "unattainable" with "out of reach", suggesting something is beyond one's grasp or ability.
possibly beyond reach
Uses "possibly" instead of "could" and "beyond reach" in place of "unattainable", implying a challenge in attaining something.
conceivably unachievable
Uses "conceivably" to express possibility and "unachievable" instead of "unattainable".
perhaps not within grasp
Emphasizes the difficulty in obtaining something, replacing "unattainable" with a more descriptive phrase.
maybe beyond one's capacity
Focuses on the limitations of one's ability to achieve something, using "beyond one's capacity" instead of "unattainable".
unlikely to be realized
Shifts the focus to the probability of something happening, using "unlikely to be realized" instead of directly stating it's unattainable.
questionable achievability
Expresses doubt about the possibility of achieving something, focusing on the achievability aspect.
FAQs
When is it appropriate to use "could be unattainable"?
Use "could be unattainable" when discussing a goal, target, or outcome that is possible, but faces significant challenges or uncertainties that may prevent its realization. It implies a degree of doubt or difficulty.
What are some alternatives to "could be unattainable"?
You can use alternatives like "might be unachievable", "may be impossible", or "potentially out of reach" depending on the context and the degree of certainty you wish to convey.
How does "could be unattainable" differ from "is unattainable"?
"Could be unattainable" expresses a possibility or uncertainty about achieving something, whereas "is unattainable" states a definitive fact that something cannot be achieved. The former leaves room for hope or potential change, while the latter indicates a final conclusion.
Is "could be unattainable" too negative for professional communication?
While it acknowledges potential difficulties, "could be unattainable" is generally acceptable in professional communication as long as it's used to realistically assess challenges rather than to discourage effort. Balance it with discussion of possible solutions or mitigating strategies.
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