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.
CPUs are also a key part of the “post-training” step for large language models, or the part of the AI model-building process where pretrained models are more actively trained toward certain goals.
From The Wall Street Journal • Apr. 24, 2026
Under certain circumstances, these excluded victims and others who missed earlier filing deadlines can still sue the Sacklers directly.
From Salon • Apr. 24, 2026
"In the current situation, security considerations dictate the need for certain measures," Peskov continues.
From BBC • Apr. 24, 2026
Stephan Jenkins agrees to bookings for music festivals only if his band Third Eye Blind can perform at a certain time.
From Los Angeles Times • Apr. 23, 2026
Chase was certain his father was worried about him, but there was nothing he could do until the storm passed.
From "Storm Runners" by Roland Smith
Vocabulary lists containing certain
The Real Deal: Synonyms for "True"
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List 1
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A Sure Thing: Synonyms for "Definite"
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