knew best

USAGE SUMMARY

"knew best" is a correct and usable phrase in written English.
It is typically used to imply that someone's opinion or judgment was correct. For example: John argued that we should take a different approach to the project, but Mary knew best and was proved correct when the project was completed.

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

53 human-written examples

Doctors knew best.

The New Yorker

Parents knew best.

The New Yorker

But he knew best.

The New Yorker

And maybe she knew best.

The New York Times

The market knew best.

The New York Times

His father knew best.

The New York Times - Sports

Mother always knew best.

The New York Times

They knew best what was needed.

The Guardian - Opinion

For once, the Brits knew best.

The Guardian - Music

As it turned out, father knew best.

The New York Times - Sports

Nobody listened to us because idealists like Goldfinger knew best.

Independent

Expert writing Tips

Best practice

When using "knew best", ensure the context clearly indicates why the person or entity's knowledge was superior. Provide supporting details to reinforce this claim.

Common error

Avoid using "knew best" when the outcome is still uncertain or debatable. Overstating the certainty of past knowledge can undermine your credibility if the situation remains ambiguous.

Linguistic Context

The phrase "knew best" functions as a predicative expression, often following a subject and a verb like 'he', 'she', or 'they'. It indicates that the subject possessed superior knowledge or made the most accurate judgment in a past situation. Ludwig's examples illustrate its use across various contexts to highlight validated decisions or insights.

Expression frequency: Very common

Frequent in

News & Media

100%

Less common in

Formal & Business

0%

Science

0%

Encyclopedias

0%

Ludwig's WRAP-UP

In summary, the phrase "knew best" is a common and grammatically sound way to express that someone's judgment or understanding was ultimately correct in a past situation. Ludwig AI confirms its validity and widespread use across various contexts, particularly in news and media. The phrase often implies a sense of wisdom or foresight, and while generally neutral in tone, it can also be used sarcastically. Alternatives such as ""was proven right"" or ""understood it best"" offer similar meanings with slight variations in emphasis. When using "knew best", it's crucial to ensure the context clearly supports the claim of superior knowledge to avoid overstating certainty.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

understood it best

Focuses on the completeness and accuracy of someone's comprehension.

was ultimately correct

Stresses the final correctness despite potential initial doubts.

turned out to be correct

Highlights the eventual confirmation of an earlier judgment.

was proven right

Focuses on the validation of a past decision or belief.

had the correct perspective

Emphasizes having the right viewpoint or understanding.

had the right answer

Emphasizes possessing the correct solution or understanding.

made the correct call

Highlights a correct decision made in a specific situation.

accurately predicted

Focuses on the predictive accuracy of a past assessment.

had superior insight

Emphasizes a deeper understanding that led to a correct conclusion.

was wiser in retrospect

Highlights the benefit of hindsight in validating a past decision.

FAQs

How can I use "knew best" in a sentence?

Use "knew best" to indicate that someone's judgment or understanding was ultimately correct, often in contrast to others' opinions. For example, "Despite the criticism, she "was proven right", proving that she "understood it best"."

What phrases are similar to "knew best"?

Similar phrases include "was ultimately correct", "had the right answer", or "made the correct call". The choice depends on whether you want to emphasize correctness, insight, or decision-making.

Is it better to say "knew best" or "knows best"?

"Knew best" refers to a past situation where someone's judgment proved accurate. "Knows best" implies present or ongoing superior knowledge. Use the appropriate tense based on the time frame you are discussing.

Can "knew best" be used sarcastically?

Yes, "knew best" can be used sarcastically to imply that someone wrongly believed they had superior knowledge, but their actions or decisions led to a negative outcome. The tone and context will indicate the sarcastic intent.