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.
“We have heard that you were promised in Alaska the resolution of certain issues concerning Ukraine and Europe,” Zelensky wrote, referring to Putin’s August summit with Trump.
From The Wall Street Journal • Jun. 5, 2026
But with some countries remaining candidates for more than 15 years, support for joining the bloc has taken a hit in certain Balkan nations.
From Barron's • Jun. 5, 2026
What AI appears to be doing for now is slightly reducing the need for companies to fill or keep certain jobs — while encouraging others to hire more people.
From MarketWatch • Jun. 5, 2026
Their findings suggest that although certain areas may temporarily accumulate more carbon as water levels increase, the overall capacity of mangrove forests to store carbon is likely to decline over the next century.
From Science Daily • Jun. 5, 2026
The ringing in my ears was the loudest thing in the room, and so I couldn’t say for certain what he said.
From "The Brightwood Code" by Monica Hesse
Vocabulary lists containing certain
The Real Deal: Synonyms for "True"
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
List 1
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
A Sure Thing: Synonyms for "Definite"
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
