certainty

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noun cer·tain·ty \ ˈsər-tᵊn-tē \

Definition of certainty

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

  1. Scientists still do not know with any degree of certainty why the disease spread so quickly.

  2. We cannot predict the outcome with absolute certainty.

  3. There was no certainty that the package would arrive in time.

  4. Her certainty about these complex moral issues is surprising.

Recent Examples of certainty from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'certainty.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of certainty

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

Synonym Discussion of 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


CERTAINTY Defined for English Language Learners

certainty

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noun

Definition of certainty for English Language Learners

  • : the state of being or feeling certain about something

  • : something that is certain : a fact about which there is no doubt


CERTAINTY Defined for Kids

certainty

play
noun cer·tain·ty \ ˈsər-tᵊn-tē \

Definition of certainty for Students

plural certainties
1 :something that is sure
  • Victory was a certainty.
2 :the quality or state of being sure
  • She answered with certainty.


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