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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
if not impossible
Grammar usage guide and real-world examplesUSAGE SUMMARY
"if not impossible" is correct and usable in written English.
You can use it to introduce a phrase or clause that qualifies the preceding phrase or clause. For example, "I want to go to the beach this weekend, if not impossible."
✓ Grammatically correct
News & Media
Science
Alternative expressions(3)
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
unlikely if not impossible".
News & Media
This makes reform hard if not impossible.
News & Media
Proving motive is difficult, if not impossible.
News & Media
That is doubtful if not impossible.
News & Media
That seems highly unlikely, if not impossible.
News & Media
Predictions are hard, if not impossible.
News & Media
That seems quite unlikely if not impossible.
News & Media
"It would be difficult if not impossible".
News & Media
Negotiating a new treaty would be arduous, if not impossible.
News & Media
The rule has proved difficult, if not impossible, to enforce.
News & Media
That means reducing benefits is very difficult, if not impossible.
News & Media
Expert writing Tips
Best practice
Use "if not impossible" to temper strong statements and introduce a degree of uncertainty or difficulty, showing nuanced perspective in your writing.
Common error
Avoid using "if not impossible" excessively in casual conversation or informal writing; simpler phrasing may be more appropriate.
Source & Trust
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "if not impossible" primarily functions as a qualifier or hedge. It modifies a preceding statement, indicating a high degree of difficulty while acknowledging a remote possibility. Ludwig confirms this is a correct usage.
Frequent in
News & Media
42%
Science
37%
Formal & Business
11%
Less common in
Wiki
6%
Encyclopedias
2%
Reference
2%
Ludwig's WRAP-UP
In summary, "if not impossible" is a common and grammatically sound phrase used to express a high degree of difficulty or improbability. Ludwig confirms that it is correct and usable in written English. Primarily found in News & Media and Scientific contexts, this phrase serves as a qualifier, softening strong statements by suggesting a slight chance of possibility. When using this phrase, be mindful of the context and avoid overuse in overly informal situations. Alternatives include "if not unfeasible" or "if not unattainable". Remember, the key is to convey nuance and avoid definitive claims of impossibility.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
if not unfeasible
Replaces 'impossible' with 'unfeasible', suggesting something may not be practical.
if not unattainable
Replaces 'impossible' with 'unattainable', focusing on the aspect of not being able to reach a goal.
if not implausible
Replaces 'impossible' with 'implausible', suggesting the action is unlikely to happen.
if not unachievable
Replaces 'impossible' with 'unachievable', emphasizing the lack of possibility to accomplish something.
if not hardly possible
Replaces 'impossible' with 'hardly possible', maintaining the sense of great difficulty.
if not remotely possible
Replaces 'impossible' with 'remotely possible', suggesting a very low probability.
if not unrealistic
Replaces 'impossible' with 'unrealistic', focusing on the impracticality of the scenario.
if not out of the question
Replaces "impossible" with "out of the question", emphasizing that the scenario is not a possibility.
if not a long shot
Replaces "impossible" with "a long shot", suggesting it will be difficult, and require an amount of luck to happen.
if not wishful thinking
Replaces "impossible" with "wishful thinking", indicating the idea is unlikely to ever happen.
FAQs
How can I use "if not impossible" in a sentence?
Use "if not impossible" to express that something is very difficult, while still acknowledging a slim chance of it occurring. For example, "Completing the project on time will be difficult, if not impossible".
What's a similar phrase to "if not impossible"?
Alternatives include "if not unfeasible", "if not unattainable", or "if not implausible", each subtly changing the nuance of the statement.
When is it appropriate to use "if not impossible" in writing?
It is appropriate to use "if not impossible" in situations where you want to convey that something is highly improbable or challenging, yet not entirely beyond the realm of possibility. This phrase works well in both formal and informal contexts, depending on the overall tone of your writing.
Is there a difference between saying "difficult if not impossible" and "impossible if not difficult"?
Yes, "difficult if not impossible" suggests that something is primarily difficult, but potentially impossible. "Impossible if not difficult" implies that if something isn't even difficult, it's definitely impossible, which doesn't make logical sense. The former is the more commonly used and logical phrasing.
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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
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested