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
unless it is clear
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "unless it is clear" is correct and usable in written English.
You can use it to indicate a condition where something should not be assumed or acted upon unless clarity is provided. Example: "You should not proceed with the project unless it is clear what the client's requirements are."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(1)
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
13 human-written examples
"I will not ever leave the ground again," he said, unless it is clear that he can succeed without fumbling.
News & Media
It is impossible to run a bank – let alone any other company – unless it is clear who is in charge of that bank".
News & Media
It will not be able to intervene unless it is clear that national authorities cannot, or will not, punish alleged wrongdoers.
News & Media
It is obvious that cherry-picking one from fifteen variables invalidates the results unless it is clear that this has happened.
Science & Research
With this united action of people, Legislature and court, we are not at liberty to interfere unless it is clear beyond reasonable controversy that rights secured by the federal Constitution have been violated.
Academia
A request for documentation or other information must be treated as an error unless it is clear that the consumer is requesting a duplicate copy for tax or other record-keeping purposes.
Academia
Human-verified similar examples from authoritative sources
Similar Expressions
47 human-written examples
We have previously shown that myelin debris accumulating in lesions as a result of demyelination exerts a powerful inhibitory effect on OPC differentiation unless it is cleared by phagocytes (Kotter et al., 2006).
Science
The message from Brighton is that the project is a non-starter unless it's clear the predicted costs are based in some kind of reality.
News & Media
While both sides said the law was unclear, Mr. Goodman was adamant that he would not agree to be seated unless it was clear that he had won.
News & Media
But this person said the mayor would be unlikely to endorse him unless it were clear his blessing would lead to an impact in the polls.
News & Media
Antitrust law doesn't protect rivals from harmful competition, the Supreme Court has ruled, unless it's clear their injuries would also damage consumers.
News & Media
Expert writing Tips
Best practice
Ensure that the condition following "unless it is clear" is specific and directly related to the action or statement being qualified.
Common error
Avoid constructions where the subject of what needs to be clear is vague. Instead of "unless it is clear", specify who needs to clarify what: "unless the requirements are clear to the team".
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "unless it is clear" functions as a conditional conjunction, setting a prerequisite for the main clause to be valid or for an action to proceed. As seen in Ludwig, it introduces a condition of clarity that must be met.
Frequent in
News & Media
30%
Academia
30%
Science
22%
Less common in
Formal & Business
10%
Wiki
6%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, "unless it is clear" is a versatile conditional phrase that introduces a requirement for certainty or understanding. Ludwig AI confirms its grammatical correctness and common usage across diverse contexts, including news, academia, and science. When using this phrase, ensure the condition you're setting is specific and directly related to the action or statement being qualified. Alternatives such as "unless it is evident" or "unless it is obvious" can be used depending on the desired nuance. Remember to avoid vague subjects and specify who needs to clarify what to maintain clear communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
unless it's evident
Replaces "clear" with "evident", implying a slightly stronger sense of obviousness.
unless it is obvious
Substitutes "clear" with "obvious", suggesting a lack of ambiguity or doubt.
unless it becomes apparent
Uses "becomes apparent" to emphasize the process of clarity emerging over time.
unless it is made explicit
Replaces "clear" with "made explicit", indicating a need for direct and unambiguous communication.
unless it is beyond doubt
Conveys a stronger sense of certainty and leaves no room for questioning.
unless certainty is established
Focuses on the establishment of certainty, rather than just clarity.
unless it is distinctly understood
Highlights the need for a mutual understanding that is unambiguous.
unless there is a clear indication
Shifts focus to the presence of a sign or signal that provides clarity.
only if it is clear
Rephrases to "only if", changing the emphasis from exception to conditionality.
except when clarity exists
Uses "except when" to denote the conditions under which the statement doesn't apply, focusing on the existence of clarity.
FAQs
How can I use "unless it is clear" in a sentence?
The phrase "unless it is clear" is used to introduce a condition that must be met before a certain action can be taken or a statement can be considered valid. For example: "You should not proceed with the experiment "unless it is clear" what the expected outcome is."
What are some alternatives to saying "unless it is clear"?
You can use alternatives like "unless it is evident", "unless it is obvious", or "unless it becomes apparent" depending on the context.
Is it better to use "unless it's clear" or "unless it is clear"?
Both "unless it's clear" and "unless it is clear" are grammatically correct and commonly used. The contracted form "unless it's clear" is slightly more informal, while "unless it is clear" is more formal. Choose the form that best suits the tone of your writing.
What is the difference between "unless it is clear" and "if it is not clear"?
While both phrases express a conditional relationship, "unless it is clear" implies that action or validity depends on clarity being achieved, whereas "if it is not clear" simply states a condition. "Unless it is clear, do not proceed" means proceeding is contingent on clarity. "If it is not clear, seek clarification" means seeking clarification is necessary when there's a lack of clarity.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested