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
Examples are automatically compiled from online sources to
show current usage.
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Recent Examples of certain
Things like an object’s size and weight must meet certain criteria, and they must also be designed to be robust enough to survive the violence of a rocket launch.
—
Christopher McFadden, Interesting Engineering, 25 Apr. 2026
Another example is certain Volkswagen Beetles, where servicing the cooling system fan or air‑conditioning condenser requires removal of the bumper cover and both front fenders.
—Hartford Courant, 25 Apr. 2026
If the urge is habitual or problematic, certain changes in behavior can help bring it under control.
—Md Published, Verywell Health, 25 Apr. 2026
Their whirlwind romance leads to an engagement–and a future that feels certain.
—Fleurine Tideman, Glamour, 25 Apr. 2026
See All Example Sentences for certain
Christopher McFadden, Interesting Engineering, 25 Apr. 2026
Another example is certain Volkswagen Beetles, where servicing the cooling system fan or air‑conditioning condenser requires removal of the bumper cover and both front fenders.
—Hartford Courant, 25 Apr. 2026
If the urge is habitual or problematic, certain changes in behavior can help bring it under control.
—Md Published, Verywell Health, 25 Apr. 2026
Their whirlwind romance leads to an engagement–and a future that feels certain.
—Fleurine Tideman, Glamour, 25 Apr. 2026
See All Example Sentences for certain
Recent Examples of Synonyms for certain
Adjective
-
Drinkwater didn't make one appearance in a Chelsea shirt last season, whilst Bakayoko spent the season in Italy on loan at AC Milan.—
SI.com,
SI.com,
3 Aug. 2019
-
Decisions made by engineers today, in other words, will determine not how one car drives but how all cars drive.—
Johannes Himmelreich,
BostonGlobe.com,
30 Mar. 2018
Adjective
-
The fans are sure to clock in for its extra nuggets of lore, but there are few reasons for a non-Slimehead to take the plunge.—
Beatrice Loayza,
Variety,
1 May 2026
-
Holland's not quite sure why so many in his generation are avoiding alcohol.—
Charles Trepany,
USA Today,
1 May 2026
Adjective
-
The survivor is in stable condition.—
Roni Jacobson,
New York Daily News,
27 Apr. 2026
-
He was placed on detox monitoring, which was later discontinued after his condition appeared stable.—
Kelly Davis,
San Diego Union-Tribune,
26 Apr. 2026
Adjective
-
With his girth, incredible wingspan (85 inches) and arm length (35 inches), Collins is the requisite two-gap defensive tackle necessary for San Francisco’s defense.—
Sam Warren,
New York Times,
25 Apr. 2026
-
That means an entertainment license wouldn’t be necessary anymore for bars that want to host trivia nights, for bowling alleys and for coffee shops that have an unamplified live performer.—
Elliott Wenzler,
Denver Post,
25 Apr. 2026
Adjective
-
This Oxo spinner remains one of the most reliable options, with a smooth pump mechanism and sturdy construction that holds up better than most.—
Jennifer Zyman,
Bon Appetit Magazine,
28 Apr. 2026
-
In his first varsity season, the junior infielder/pitcher has developed into a reliable reliever for the Warriors.—
Steve Millar,
Chicago Tribune,
27 Apr. 2026
Adjective
-
From California to Annecy, Walt Disney Animation Studios and Pixar Animation Studios will travel with two back-to-back presentations, a definite highlight of Annecy’s Friday in recent years.—
Kevin Giraud,
Variety,
28 Apr. 2026
-
Getting Clardy is a definite positive.—
Chantel Jennings,
New York Times,
28 Apr. 2026
Adjective
-
Bader felt confident in creating a collection that would cater to Show Me Your Mumu's shoppers as well as her followers.—
Hedy Phillips,
PEOPLE,
30 Apr. 2026
-
Just being more confident in my choice of what is funny and what’s not.—
Los Angeles Times,
Los Angeles Times,
30 Apr. 2026
Adjective
-
An Eliot Wolf pick Eliot Wolf will have final say on the Patriots’ draft picks Saturday, when Mike Vrabel will be away with his family and seeking counseling.—
Andrew Callahan,
Boston Herald,
25 Apr. 2026
-
Redick worked with James’ trainer Mike Mancias to ensure his 41-year-old star’s durability in the final aughts of the game – the four-time NBA MVP eventually playing a team-high 45 minutes while using any opportunity to sink to the floor for a breather.—
Benjamin Royer,
Oc Register,
25 Apr. 2026
Cite this Entry
“Certain.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/certain. Accessed 1 May. 2026.
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