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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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unless proved otherwise

Grammar usage guide and real-world examples

USAGE SUMMARY

"unless proved otherwise" is correct and usable in written English.
You can use this phrase to refer to a statement or agreement that is only valid until proven to be untrue or incorrect. For example, "The court ruled that any rights of inheritance will go solely to the eldest of the two siblings, unless proved otherwise."

✓ Grammatically correct

News & Media

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

14 human-written examples

Plants should be presumed dangerous for consumption unless proved otherwise.

News & Media

The New York Times

But the presumption will now be that a prenuptial agreement is fair, unless proved otherwise.

News & Media

The Economist

In practice, fission-track dates are regarded as cooling ages unless proved otherwise.

Assume that every patient, unless proved otherwise, is traumatized by his or her illness.

News & Media

The New York Times

That's because industrial chemicals are presumed safe unless proved otherwise, under the 1976 federal Toxic Substances Control Act.

It was a recurring theme for the company over the next few years -- that Vioxx was safe unless proved otherwise.

News & Media

The New York Times
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Human-verified similar examples from authoritative sources

Similar Expressions

46 human-written examples

"Everyone is innocent unless proven otherwise".

News & Media

The New York Times

You are innocent unless proven otherwise".

News & Media

The New York Times

They assume the worst unless proven otherwise".

News & Media

The Guardian

"Everyone is innocent unless proven otherwise," he said, according to the e-mail.

News & Media

The New York Times

Professor Meadow maintains that unless proven otherwise, two cot deaths are "suspicious", and "three is murder".

News & Media

The Guardian
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Expert writing Tips

Best practice

Use "unless proved otherwise" to establish a default assumption that remains valid until contradictory evidence emerges. It is useful in legal, scientific, and formal contexts where precision is important.

Common error

Avoid using "unless proved otherwise" in casual conversation or informal writing. Simpler phrases like "unless we find out differently" or "if not" are often more appropriate and less stilted.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

90%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "unless proved otherwise" functions as a conditional conjunction. It introduces an exception or condition that would negate a preceding statement or assumption. Ludwig AI indicates its proper usage in written English.

Expression frequency: Common

Frequent in

News & Media

55%

Science

25%

Encyclopedias

10%

Less common in

Formal & Business

5%

Academia

3%

Wiki

2%

Ludwig's WRAP-UP

The phrase "unless proved otherwise" functions as a conditional conjunction, setting a default assumption that remains valid until disproven. Ludwig AI confirms it is correct and usable in written English, with applications spanning news, science, encyclopedias, and business. While grammatically sound, it's best to avoid it in casual settings, opting for simpler alternatives. Remember to establish assumptions clearly and avoid overuse in informal contexts for optimal clarity and impact.

FAQs

How can I use "unless proved otherwise" in a sentence?

You can use "unless proved otherwise" to set a condition that holds true until evidence demonstrates the contrary. For example, "All data is considered accurate, "unless proved otherwise"." Alternatively you can say "All data is considered accurate, "unless there is evidence to the contrary"".

What's a simpler way to say "unless proved otherwise"?

For less formal situations, consider alternatives like "if not", "except when", or "unless we find out differently". These options convey a similar meaning with less formality.

Is it "unless proven otherwise" or "unless proved otherwise"?

Both "unless proven otherwise" and "unless proved otherwise" are grammatically correct and widely used. The choice depends on stylistic preference, though "unless proved otherwise" might be perceived as slightly more formal.

What's the difference between "unless proved otherwise" and "without evidence to the contrary"?

While both phrases convey a similar meaning, "unless proved otherwise" sets an initial assumption that needs to be disproven, whereas "without evidence to the contrary" emphasizes the lack of opposing evidence as the basis for the statement's validity.

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Authority and reliability

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Expert rating

Real-world application tested

Most frequent sentences: