proof positive

USAGE SUMMARY

"proof positive" is a correct and commonly used phrase in written English.
It is often used to mean proof that is beyond a reasonable doubt. For example, "Her results were proof positive that she was the most qualified candidate."

✓ Grammatically correct

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

ADAM GOPNIK: Proof positive.

The New Yorker

Proof Positive: Principles of Mathematics. 1 Unit.

Stanford University

"This is proof positive that we don't live in Florida".

The New York Times

Tower Hamlets is proof positive that it doesn't.

The Guardian - Opinion

"But it's not proof positive of the quark-gluon plasma".

The New York Times

Proof positive that he and Yvón had a relationship.

The New Yorker

In the finale, the writers don't offer proof positive.

The New York Times - Arts

It was a slick move and proof positive that the visitors were now firmly in control.

The Guardian - Sport

Proof positive that lettuce doesn't have to be unforgiving rabbit food.

The Guardian - Lifestyle

How's that for proof positive of the need for McCain's campaign finance reform?

The New York Times

"I think this is proof positive that democracy is alive and working".

The New York Times

Expert writing Tips

Best practice

Use "proof positive" when you want to emphasize that the evidence is strong and leaves no room for doubt. It's particularly effective when countering skepticism or debate.

Common error

Avoid using "proof positive" in overly casual or informal settings. Its formal tone might sound out of place in everyday conversation; consider using simpler phrases like "it's a fact" or "it's certain".

Linguistic Context

The phrase "proof positive" functions as a noun phrase that serves to emphasize the existence of overwhelming or definitive evidence. According to Ludwig, this phrase is frequently employed to assert a point beyond any reasonable doubt.

Expression frequency: Very common

Frequent in

News & Media

80%

Academia

10%

Science

5%

Less common in

Formal & Business

3%

Encyclopedias

1%

Wiki

1%

Ludwig's WRAP-UP

In summary, "proof positive" signifies overwhelming or definitive evidence, making it a powerful tool for asserting claims with certainty. As Ludwig highlights, the phrase is considered grammatically correct and sees frequent use across various reputable sources, especially in news and media. While the register is generally neutral leaning towards formal, its strong emphasis suggests mindful application in overly informal contexts. When aiming for absolute clarity and conviction, "proof positive" effectively conveys a message that leaves little room for doubt.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

irrefutable evidence

Replaces the idiomatic phrase with a more formal and direct expression.

conclusive proof

Substitutes "positive" with "conclusive", highlighting the decisive nature of the evidence.

definitive evidence

Emphasizes the finality and lack of ambiguity in the evidence.

undeniable proof

Focuses on the impossibility of refuting the presented evidence.

absolute certainty

Shifts the focus from the proof itself to the resulting state of certainty.

incontrovertible evidence

A more formal synonym for undeniable, suggesting the evidence cannot be disputed.

cast-iron proof

Uses a metaphor to describe the strength and reliability of the proof.

beyond doubt

Expresses the absence of any reasonable doubt due to the strength of the evidence.

clear-cut evidence

Highlights the unambiguous nature of the evidence.

unquestionable evidence

Indicates that the evidence is so strong that it cannot be reasonably questioned.

FAQs

How can I use "proof positive" in a sentence?

"Proof positive" is used to indicate that there is overwhelming or definitive evidence for something. For example: "The test results were "proof positive" that he was the father."

What's a more formal alternative to "proof positive"?

For a more formal tone, consider using phrases like "irrefutable evidence" or "conclusive proof", which convey a similar sense of certainty.

Is "proof positive" redundant, since 'proof' implies certainty?

While 'proof' itself suggests certainty, "proof positive" intensifies this, highlighting that the evidence is not just convincing but also leaves no reasonable doubt. The phrase "absolute certainty" aims to provide a similar kind of emphasis.

What is the difference between "proof positive" and "circumstantial evidence"?

"Proof positive" refers to direct and conclusive evidence, whereas "circumstantial evidence" relies on inference and suggests a conclusion without directly proving it. "Proof positive" provides certainty; circumstantial evidence suggests likelihood.