certain
Usage
What are other ways to say certain?
Certain, one of a handful of adjectives indicating full belief and trust that something is true, suggests that there are definite reasons that have freed one from doubt. Confident emphasizes the strength of the belief or the certainty of expectation felt. Positive implies emphatic certainty, which may even become overconfidence or dogmatism. Sure, the simplest and most general term, expresses mere absence of doubt.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
You might be in the habit of keeping a certain amount of cash on hand for emergencies, but how much interest are you earning on that money?
From MarketWatch • Apr. 3, 2026
But the pair of young couples are treating this practical business transaction between customer and caterer as their double date, lingering too long and asking for more wine, joking that they’re not quite certain yet.
From Salon • Apr. 3, 2026
Other inflammation-related molecules, including certain lipid mediators derived from fatty acids, were also reduced.
From Science Daily • Apr. 3, 2026
It concludes a 40-day period known as Lent, during which Christians focus on prayer, almsgiving, and practice traditions such as abstinence from eating meat on certain days.
From Barron's • Apr. 2, 2026
I look at her, wonder where the line is between not telling her certain things and being dishonest.
From "Red Flags and Butterflies" by Sheryl Azzam
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From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.