side effect

variants also side reaction
Definition of side effectnext

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 side effect The success of the track and the music video has had an unusual side effect. Emily Zemler, Rolling Stone, 31 Oct. 2025 That side effect was not seen with ALZ-801, which works by preventing amyloid plaques from forming in the first place. Melissa Rudy, FOXNews.com, 30 Oct. 2025 One side effect of excess protein is extra nitrogen in urine. Veronique Greenwood, Time, 28 Oct. 2025 The Tyndall effect, a bluish discoloration from filler that has been injected too superficially, is another possible side effect and is most commonly seen in the thin-skinned undereye area. Kara Nesvig, Allure, 27 Oct. 2025 See All Example Sentences for side effect
Recent Examples of Synonyms for side effect
Noun
  • Subscribe today When the most populous nation on Earth forges a trade deal with a bloc that comprises nearly 15% of the world’s GDP, the ramifications will be widespread — and not just in monetary terms.
    Yeo Boon Ping, CNBC, 27 Jan. 2026
  • The series looks at the ramifications of a technology that still eludes a portion of the continent via recurring rolling blackouts.
    Thomas Patier, Artforum, 27 Jan. 2026
Noun
  • The aftereffects still plague our society today.
    Edward Lotterman, Twin Cities, 21 Dec. 2025
  • The unseen Wolf is an open admirer and a frustrated collaborator, granting Reubens his artistic due while grappling with the decades-long aftereffects of the homophobic scandals that derailed his career.
    Inkoo Kang, New Yorker, 8 Dec. 2025
Noun
  • The complexity came with an upside.
    Geri Stengel, Forbes.com, 29 Jan. 2026
  • March is always madness, but this month intensifies matters as Mars activates your relationship zone (between March 2 and April 9), bringing complexities, buried desires and unspoken resentments to the surface.
    Valerie Mesa, PEOPLE, 28 Jan. 2026
Noun
  • Previous studies have shown that hardware tailored for specific mathematical operations, such as Fourier and convolution transforms, can significantly outperform general-purpose processors.
    Atharva Gosavi, Interesting Engineering, 13 Jan. 2026
  • The twists, worries and delays in her story highlight the convolution of the U.S. immigration system and the challenges anyone who crossed the border without authorization faces in trying to become a legal resident.
    Sophie Carson, jsonline.com, 3 Dec. 2025
Noun
  • The risk of complications from not receiving a vitamin K shot at birth far outweighs the risks of the injection itself.
    Dr. Jade Cobern, ABC News, 23 Jan. 2026
  • Other groups that are more likely to suffer from measles complications include adults older than 20 years old, pregnant women and people with weakened immune systems, the federal health agency said.
    Hali Smith, Idaho Statesman, 22 Jan. 2026

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Cite this Entry

“Side effect.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/side%20effect. Accessed 30 Jan. 2026.

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