DictionaryAI

certainty

noun
SaySUR-tn-tee/ˈsɝtn̩ti/UK/ˈsɜːtn̩ti/

Pluralcertainties (some meanings)

3 meanings of certainty

Practice

  1. 1
    noununcountable
    The feeling of being completely sure about something.

    Like knowing for sure the sun will come up in the morning.

    She spoke with such certainty that no one doubted her.

    There is no certainty that it will rain tomorrow.

    Similarsureness, certitude

    Oppositedoubt, uncertainty

  2. 2
    nouncountable
    A fact that is so clearly true that no one can doubt it.

    Like a rule everyone agrees on, such as two plus two making four.

    Death is one certainty that everyone must face.

    In life, taxes are a certainty you cannot avoid.

    Similarcertitude, inevitability, cinch

    Oppositeuncertainty

  3. 3
    nouncountable
    A single moment or case of feeling completely sure about something.

    Like that quick moment when you suddenly know you are right.

    Her sudden certainty about the answer surprised the whole class.

    He felt a brief certainty that he had met her before.

    Similarconviction, assurance, confidence, certitude

    Oppositedoubt, uncertainty

Practice

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Origin

It came through Middle English and Old French from Latin certus, meaning 'certain'.