1
as in unfavorable
opposed to one's interests
all the adverse publicity really caused the movie star's popularity to suffer
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in detrimental
causing or capable of causing harm
the adverse effects of the drug are too severe to allow it to be marketed
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of adverse
If the data and systems architectures are not designed well to keep up with the demand, decision-making can slow down, producing adverse effects.
—
Manish Kapoor, Forbes.com, 3 Sep. 2025
Vaccine-preventable diseases do still exist and contracting these illnesses can have an adverse effect on a student’s health, well-being and ability to reach optimal academic performance.
—Kirby Wilson, Miami Herald, 3 Sep. 2025
And researchers caution that genistein can potentially cause adverse effects at higher dosage and exposure levels.
—Jocelyn Solis-Moreira, Flow Space, 3 Sep. 2025
Serious adverse events occurred rarely and, the researchers said, weren’t linked to using the nasal spray.
—New Atlas, 2 Sep. 2025
See All Example Sentences for adverse
Manish Kapoor, Forbes.com, 3 Sep. 2025
Vaccine-preventable diseases do still exist and contracting these illnesses can have an adverse effect on a student’s health, well-being and ability to reach optimal academic performance.
—Kirby Wilson, Miami Herald, 3 Sep. 2025
And researchers caution that genistein can potentially cause adverse effects at higher dosage and exposure levels.
—Jocelyn Solis-Moreira, Flow Space, 3 Sep. 2025
Serious adverse events occurred rarely and, the researchers said, weren’t linked to using the nasal spray.
—New Atlas, 2 Sep. 2025
See All Example Sentences for adverse
Recent Examples of Synonyms for adverse
Adjective
-
Also, unfavorable factors are the extension price tag that can top tens of billions of dollars annually, and eligibility that includes those making 400% the poverty rate.—
Ramsey Touchberry,
The Washington Examiner,
11 Sep. 2025
-
Two years before the Rule was finalized in 1944, the Supreme Court made unfavorable (unpublished) comments about a draft proposal permitting the government to take pretrial depositions.—
Robert Anello,
Forbes.com,
10 Sep. 2025
Adjective
-
Meanwhile, from an AI duality perspective, there is also a solid chance that AI can be detrimental to mental health.—
Lance Eliot,
Forbes.com,
8 Sep. 2025
-
These die-offs have caused detrimental imbalances within the habitats.—
Lauren Liebhaber
September 5,
Miami Herald,
5 Sep. 2025
Adjective
-
However, a number of attendees posted negative comments about the event on social media, with many claiming that the experience was chaotic and poorly organized.—
Toria Sheffield,
PEOPLE,
6 Sep. 2025
-
But let’s face it - any kind of drama on social media, positive or negative, is good for any reality competition show (or any series, for that matter).—
Marc Berman,
Forbes.com,
6 Sep. 2025
Adjective
-
According to a five-pillar plan shared with CNBC, Cruz also aims to create federal standards for AI, prevent AI from being used in harmful ways such as scams, allow free speech and address ethical concerns.—
Emily Wilkins,
CNBC,
10 Sep. 2025
-
Nonfiction narratives that students both read and produce serve as counter-narratives to the oppressive and harmful tropes in media more generally about Black girls and girlhood.—
The Editors,
JSTOR Daily,
10 Sep. 2025
Adjective
-
Trump has been hostile to renewable energy, particularly offshore wind, and prioritizes fossil fuels for electricity.—
Sydney Lake,
Fortune,
5 Sep. 2025
-
Eagles defensive tackle Jalen Carter took it as a hostile act and approached Prescott, meeting face-to-face with him.—
Nick Harris,
Fort Worth Star-Telegram,
5 Sep. 2025
Adjective
-
The National Weather Service in Nashville said the region is at a slight risk, a two on the five-step scale, for damaging winds, isolated large hail, heavy rains, frequent lightning and a possible tornado.—
Kirsten Fiscus,
Nashville Tennessean,
5 Sep. 2025
-
The terrifying part is that these attacks are likely to become more frequent and more damaging.—
Alan Henry,
PC Magazine,
5 Sep. 2025
Adjective
-
Whatever happens in their final qualifier, against Argentina on Tuesday, La Tri will travel to the World Cup next summer as one of South America’s most dangerous teams.—
Jack Lang,
New York Times,
8 Sep. 2025
-
To dissidents, she has been seen as a hero putting her life on the line; to Modi’s supporters, as a dangerous subversive who is anti-national and anti-Hindu.—
Anderson Tepper,
The Atlantic,
8 Sep. 2025
Adjective
-
This was a classic Smith performance with tons of yardage and some risky throws with both good and bad results.—
Mike Sando,
New York Times,
8 Sep. 2025
-
You were called something much worse, and [it was] accepted.—
Brenton Blanchet,
PEOPLE,
8 Sep. 2025
Cite this Entry
“Adverse.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/adverse. Accessed 13 Sep. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share