1
as in one
known but not named
a certain person told me that today is your birthday
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in sure
having or showing a mind free from doubt
I'm certain that they'll arrive on time
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in stable
having been established and usually not subject to change
a certain percentage of the profits will go to charity
Synonyms & Similar Words
Antonyms & Near Antonyms
4
as in necessary
impossible to avoid or evade
as he got older, the athlete began to feel the certain effects of the aging process on his body
Synonyms & Similar Words
Antonyms & Near Antonyms
5
as in reliable
not likely to fail
chicken soup is grandma's certain cure for pretty much whatever ails you
Synonyms & Similar Words
Antonyms & Near Antonyms
6
as in definite
not capable of being challenged or proved wrong
up to this point there's been no certain evidence that a crime has been committed
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of certain
While enjoying summer might be at the top of the to-do list, having certain items on hand that make summer a little easier is essential.
—
Rebecca Jones,
Southern Living,
27 June 2026
The indictment also alleges that certain victims also provided their driver’s license number and other personal identifying information, as well as banking and credit card information.
—
Staff Report,
Hartford Courant,
27 June 2026
For now, antihistamines and certain other drugs for hives can tamp down some itchiness triggered by mast cells.
—
ABC News,
27 June 2026
To varying degrees of success, there's even some partial carbonic fermentation to soften tannins in certain cuvées.
—
Paul Caputo,
Forbes.com,
27 June 2026
See All Example Sentences for certain
Rebecca Jones,
Southern Living,
27 June 2026
The indictment also alleges that certain victims also provided their driver’s license number and other personal identifying information, as well as banking and credit card information.
—
Staff Report,
Hartford Courant,
27 June 2026
For now, antihistamines and certain other drugs for hives can tamp down some itchiness triggered by mast cells.
—
ABC News,
27 June 2026
To varying degrees of success, there's even some partial carbonic fermentation to soften tannins in certain cuvées.
—
Paul Caputo,
Forbes.com,
27 June 2026
See All Example Sentences for certain
Recent Examples of Synonyms for certain
Adjective
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Drinkwater didn't make one appearance in a Chelsea shirt last season, whilst Bakayoko spent the season in Italy on loan at AC Milan.
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Decisions made by engineers today, in other words, will determine not how one car drives but how all cars drive.
Adjective
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An investigation by the National Transportation Safety Board (NTSB) found that the driver failed to make sure the tracks were clear.
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Make sure the shiny, reflective side is facing out.
Adjective
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He was taken to a local hospital in stable condition.
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The injured girl's mother is believed to have jumped from a second-floor window to safety and is in stable condition, the PFD confirmed to CBS News.
Adjective
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Ashton's journey from moving bins to cleaning them demonstrates that a complete roadmap isn't necessary; curiosity and taking the next step are crucial.
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This week, investors are looking at the huge sums being spent and questioning whether AI can produce the profits and productivity necessary to make all the investment worth it.
Adjective
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But the systems are only as reliable as their sources, and are prone to misinformation and manipulation.
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Amodei predicts that, over the next five to ten years, AI will achieve, among other things, the reliable prevention and treatment of nearly all natural infectious disease, the elimination of most cancer, the prevention of Alzheimer’s and a doubling of the human lifespan.
Adjective
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There are definite similarities to previous summer transfer sagas involving Barcelona which have dominated headlines before or during big international tournaments.
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The Landry family bid viewers farewell on Sunday night, with the season 4 finale of The Way Home serving as the definite conclusion to Hallmark's multigenerational, century spanning drama.
Adjective
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Ship traffic first started to pick up over the weekend as shipping companies became more confident that talks between the US and Iran were progressing.
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Merlin, a 2-year-old duck, has taken the internet by storm, captivating fans with his tiny form-fitting Team Mexico jersey and confident waddle around his home of Mexico City.
Adjective
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Turns out, a kid brought in with gunshot wounds died in that room the same night, and a final look at the security footage shows a mysterious third man — clearly hiding his face from all cameras under a label-less baseball cap — entering the same room around the same time as Ji.
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Leiter said the final destination of the framework is peace between the two countries.
Cite this Entry
“Certain.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/certain. Accessed 29 Jun. 2026.
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