certainty
noun
cer·tain·ty
ˈsər-tᵊn-tē 
plural certainties
1
: something that is certain
2
: the quality or state of being certain especially on the basis of evidence
Examples of certainty in a Sentence
Scientists still do not know with any degree of certainty why the disease spread so quickly.
We cannot predict the outcome with absolute certainty.
There was no certainty that the package would arrive in time.
Her certainty about these complex moral issues is surprising.
Recent Examples on the Web
When the only certainty was uncertainty, Elissa vowed to live.
—
Kristen Jordan Shamus, USA Today, 19 May 2025
Clarity, not certainty, enables more conscious and courageous leadership.
—Angela Cusack, Forbes.com, 19 May 2025
The playoffs are a certainty for Brondello’s 2025 team.
—Fiifi Frimpong, New York Daily News, 17 May 2025
But many businesses will continue to wait for more certainty before making significant production and investment decisions given the changing nature of these challenges, according to Adoniro Cestari, head of trade and working capital solutions for Citi.
—Lori Ann Larocco, CNBC, 12 May 2025
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Cite this Entry
“Certainty.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/certainty. Accessed 29 May. 2025.
Kids Definition
certainty
noun
cer·tain·ty
ˈsərt-ᵊn-tē
plural certainties
1
: something certain
2
: the quality or state of being or feeling certain
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