certainty

noun

cer·​tain·​ty ˈsər-tᵊn-tē How to pronounce certainty (audio)
plural certainties
1
: something that is certain
2
: the quality or state of being certain especially on the basis of evidence
Choose the Right Synonym for certainty

certainty, certitude, conviction mean a state of being free from doubt.

certainty and certitude are very close; certainty may stress the existence of objective proof

claims that cannot be confirmed with scientific certainty

, while certitude may emphasize a faith in something not needing or not capable of proof.

believes with certitude in an afterlife

conviction applies especially to belief strongly held by an individual.

holds firm convictions on every issue

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 As a lifelong journalist and media entrepreneur, Brill possesses the rationalism of the former and the certainty of the latter that facts are what move the world. Laura Wagner, Washington Post, 30 June 2024 This partnership is looked upon favorably by financial markets as investment certainty brings down the cost of capital and indigenous partnership boosts ESG scores. Justin Worland/toronto, TIME, 27 June 2024 That’s why companies need certainty in the tax code. John Seiler, Orange County Register, 26 June 2024 For years, federal researchers and climate advocates hoped some entrepreneur would make the process less risky, finding a way to drill faster and more cheaply, in a broader variety of places, with much greater certainty of striking profitably hot fluid. Sammy Roth, Los Angeles Times, 25 June 2024 See all Example Sentences for certainty 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'certainty.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Middle English certeinte, borrowed from Anglo-French certeinté, from certein, certain certain entry 1 + -té -ty

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of certainty was in the 14th century

Dictionary Entries Near certainty

Cite this Entry

“Certainty.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/certainty. Accessed 15 Jul. 2024.

Kids Definition

certainty

noun
cer·​tain·​ty ˈsərt-ᵊn-tē How to pronounce certainty (audio)
plural certainties
1
: something certain
2
: the quality or state of being or feeling certain

More from Merriam-Webster on certainty

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