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
To qualify for the EITC, taxpayers cannot have more than $12,200 in certain investment income in 2026.
—
Lorie Konish, CNBC, 10 Oct. 2025
But adding certain nutrient-rich foods to your plate can make just as big a difference.
—Lauren Manaker Ms, Verywell Health, 10 Oct. 2025
Books in children's sections may be reshelved to adult aisles, or certain titles require parent permission or a staff member to retrieve them.
—Cate Charron, IndyStar, 10 Oct. 2025
On that note, the growth of artificial intelligence tools — the pros, the cons and the unknowns — are certain to be a theme of Mipcom.
—Cynthia Littleton, Variety, 10 Oct. 2025
See All Example Sentences for certain
Lorie Konish, CNBC, 10 Oct. 2025
But adding certain nutrient-rich foods to your plate can make just as big a difference.
—Lauren Manaker Ms, Verywell Health, 10 Oct. 2025
Books in children's sections may be reshelved to adult aisles, or certain titles require parent permission or a staff member to retrieve them.
—Cate Charron, IndyStar, 10 Oct. 2025
On that note, the growth of artificial intelligence tools — the pros, the cons and the unknowns — are certain to be a theme of Mipcom.
—Cynthia Littleton, Variety, 10 Oct. 2025
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
-
Saints, Panthers Arizona somehow turned an interception into a touchdown for their opponent and fumbled away another sure touchdown in a bad, bad loss on Sunday.—
Chad Graff,
New York Times,
7 Oct. 2025
-
There’s also a 50% chance of rain on Monday and 60% chance of rain on Tuesday, sure to add to the water already backed up in the street.—
Alex Harris,
Miami Herald,
6 Oct. 2025
Adjective
-
The technique could make optical clocks smaller, more stable, and usable outside high-end labs.—
Aamir Khollam,
Interesting Engineering,
9 Oct. 2025
-
This doesn’t just happen for balls rolling down hills, but for rain that pools into puddles, ponds, and lakes, for molecules that fold into a particular configuration, and even for electrons that cascade down into a stable or quasi-stable energy state.—
Ethan Siegel,
Big Think,
8 Oct. 2025
Adjective
-
If travel is absolutely necessary, drive with caution and be prepared for sudden changes in conditions.—
CA Weather Bot,
Sacbee.com,
12 Oct. 2025
-
But the doctor said the follow-up scope was necessary to check for cancer.—
Ken Alltucker,
USA Today,
12 Oct. 2025
Adjective
-
Lithium has been one of the most reliable treatments for bipolar disorder for decades.—
Aamir Khollam,
Interesting Engineering,
9 Oct. 2025
-
When renewable energy is paired with large batteries or other forms of grid management, it's proven to be reliable.—
Julia Simon,
NPR,
8 Oct. 2025
Adjective
-
Sure, there's a definite shift of styles between the grim, cramped jail cell and a lavish Hollywood musical, but the latter seems almost subdued.—
Brian Truitt,
USA Today,
8 Oct. 2025
-
There is, to United’s dismay, a definite trend of players breaking out of Old Trafford and finding a new lease of life.—
Phil Hay,
New York Times,
2 Oct. 2025
Adjective
-
The Board is confident that the institutional improvements implemented over the past five years, along with those planned for the coming months – incorporating valuable recommendations from Omnia – will mitigate risks in the future.—
Meredith Kile,
PEOPLE,
8 Oct. 2025
-
Chanel delivered a confident debut from Matthieu Blazy.—
Rhonda Richford,
Footwear News,
8 Oct. 2025
Adjective
-
New Mexico’s final drive of the game, which produced a late TD, accounted for 75 yards and four of the first downs.—
Jim Keyser,
Idaho Statesman,
12 Oct. 2025
-
One reason is that the fan base is demoralized after La Vinotinto was routed 6-3 by Colombia in the final qualifying date last month and failed to earn a World Cup playoff spot.—
Michelle Kaufman,
Miami Herald,
11 Oct. 2025
Cite this Entry
“Certain.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/certain. Accessed 14 Oct. 2025.
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