undeniable

/ˌʌndɪˈnaɪəbl/

Say it: un-dih-NYE-uh-bull

adjective So obviously true or certain that it cannot be disputed or doubted.
The link between smoking and lung cancer is an undeniable medical fact.

📖 Seen in the wild

The evidence of climate change is undeniable, supported by decades of scientific data.
collected by @vocablast

✏️ undeniable in a sentence

The satellite images provided undeniable evidence of the glacier's retreat.
Despite his quiet demeanor, he had an undeniable charisma that drew people to him.
The undeniable success of the project silenced all its initial critics.
There was an undeniable sadness in her voice as she recounted the story.
Her dominance in the sport for over a decade is simply undeniable.
Okay, you have a point; the logic of your argument is undeniable.

🔁 Synonyms & antonyms

indisputable irrefutable incontestable incontrovertible unquestionable certain obvious manifest

indisputable · suggests something has been proven beyond any argument or debate.

irrefutable · emphasizes that something cannot be disproven with evidence or logic.

incontestable · implies that no contest or challenge against it could possibly succeed.

incontrovertible · a more formal term suggesting no controversy or debate is possible.

Opposites: deniable, questionable, disputable, dubious, uncertain

🌱 Where it comes from

The word's origin is as clear as its meaning. It was formed in the 1640s by simply adding the prefix 'un-', meaning 'not', to the word 'deniable'. 'Deniable' itself comes from the verb 'deny', which traces back through Old French to the Latin 'denegare', meaning 'to refuse' or 'to say that something is not'.

🧩 How it's used

Common patterns:

undeniable factundeniable truthundeniable evidenceundeniable impactundeniable charm

Undeniable is a strong word that asserts absolute certainty, so use it for points that are truly beyond dispute. It's best suited for objective facts, evidence, or qualities that are plain for all to see, rather than for subjective opinions. While it's a common word, its force can be diluted if overused for trivial matters.

Word family: undeniably, deny, denial, deniable

💬 Quick answers

What does undeniable mean?

It means something is so clearly true or certain that it cannot be argued against or doubted. It applies to facts, evidence, or qualities that are self-evident.

What's the difference between undeniable and indisputable?

Undeniable often refers to a truth that is immediately apparent or felt, like 'undeniable charm'. Indisputable suggests a fact that has been established through argument or evidence and can no longer be challenged, like 'indisputable proof'.

Is undeniable a formal word?

Undeniable is a standard word that is appropriate in both neutral and formal contexts. It is not considered informal or slang.

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