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
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Recent Examples of adverse
In general, pomegranate supplementation doesn’t appear to have any adverse side effects, but some individuals may have gastrointestinal sensitivities that may lead to diarrhea.
—
Rebeca Schiller, Verywell Health, 29 Jan. 2026
As a result, taxpayers can miss opportunities to challenge an adverse decision simply because they were not adequately informed.
—Kelly Phillips Erb, Forbes.com, 28 Jan. 2026
This was due to multiple factors that countered headwinds from an adverse base effect and US tariff upheaval.
—Swati Pandey, Bloomberg, 27 Jan. 2026
Congenital syphilis can cause a range of adverse outcomes including fetal or neonatal death, preterm birth, low birthweight, and brain and nerve disorders.
—Theresa Gaffney, STAT, 27 Jan. 2026
See All Example Sentences for adverse
Rebeca Schiller, Verywell Health, 29 Jan. 2026
As a result, taxpayers can miss opportunities to challenge an adverse decision simply because they were not adequately informed.
—Kelly Phillips Erb, Forbes.com, 28 Jan. 2026
This was due to multiple factors that countered headwinds from an adverse base effect and US tariff upheaval.
—Swati Pandey, Bloomberg, 27 Jan. 2026
Congenital syphilis can cause a range of adverse outcomes including fetal or neonatal death, preterm birth, low birthweight, and brain and nerve disorders.
—Theresa Gaffney, STAT, 27 Jan. 2026
See All Example Sentences for adverse
Recent Examples of Synonyms for adverse
Adjective
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The fear here was due in part because Marathon had its last alpha decimated by ARC Raiders, dropping its own public test right on top of it this past summer, one that went far better and made Marathon look unfavorable in comparison.—
Paul Tassi,
Forbes.com,
24 Jan. 2026
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In 2021, the startup agreed to merge with a SPAC led by Gerry Cardinale and Billy Beane but ended up calling off the deal a year later, citing unfavorable market conditions.—
Luisa Beltran,
Sportico.com,
23 Jan. 2026
Adjective
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What’s more, inability to heal these relationships can be detrimental to physical and emotional well-being, and even longevity.—
Richard Balkin,
The Conversation,
26 Jan. 2026
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Yet none of those losses, Gottlieb points out, has been all that detrimental to the Trojans’ tournament resume.—
Ryan Kartje,
Los Angeles Times,
24 Jan. 2026
Adjective
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And one of the main lessons that will be learned from that account is that while the harms that occurred came quickly and sometimes surprisingly easily, their negative consequences — on universities and society at large — will linger for a long time.—
Michael T. Nietzel,
Forbes.com,
29 Jan. 2026
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The rapid rise of AI technology has had negative effects on the climate and humanity, albeit indirectly.—
Atharva Gosavi,
Interesting Engineering,
28 Jan. 2026
Adjective
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While skepticism toward artificial intelligence is understandable, dismissing AI as inherently harmful overlooks both history and reality.—
Arkansas Online,
Arkansas Online,
27 Jan. 2026
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Regulators will examine whether Grok is living up to its obligations under the Digital Services Act, the bloc’s wide-ranging rulebook for keeping internet users safe from harmful content and products.—
Kelvin Chan,
Chicago Tribune,
26 Jan. 2026
Adjective
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His 134 men were armed with musket, cartridge pouch, and sword in case of a hostile encounter, and the Africaansche Galey lay close by with a couple of small cannon brought forward on the bow.—
Literary Hub,
Literary Hub,
28 Jan. 2026
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The broader goal, Rubio said, is a prosperous Venezuela aligned with the United States and no longer serving as a hub for hostile foreign powers.—
Antonio María Delgado,
Miami Herald,
28 Jan. 2026
Adjective
-
This is because free iron can catalyze reactive oxygen species, which may prove to be chemically damaging.—
Scott Travers,
Forbes.com,
30 Jan. 2026
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Emily Mendenhall traces the medical myths, gender bias, and neurological truths behind hysteria, one of history’s most damaging diagnoses.—
Big Think,
Big Think,
29 Jan. 2026
Adjective
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More than a billion phones are now ineligible for security updates at a time when the threat landscape has never been more dangerous.—
Zak Doffman,
Forbes.com,
27 Jan. 2026
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The church opened its warming center over the weekend, anticipating the arrival of the winter storm and the dangerous drop in temperatures.—
Leondra Head,
CBS News,
27 Jan. 2026
Adjective
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Azzi Fudd scored 27 points and Sarah Strong added 26 to help UConn beat Tennessee, handing the Lady Vols their worst loss in the storied rivalry.—
Arkansas Online,
Arkansas Online,
2 Feb. 2026
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To that end, here’s a selection of the best (and most enjoyably bad) literary film and TV coming to streaming services this month.—
Emily Temple,
Literary Hub,
2 Feb. 2026
Cite this Entry
“Adverse.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/adverse. Accessed 2 Feb. 2026.
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