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 side effect of being able to reduce the risk of cancerous skin cells and potentially prevent future skin cancers is a definite bonus as well. — Norah O'Donnell, CBS News, 28 Oct. 2026 Last year, when Makary was still commissioner, the FDA added safety warnings to mRNA Covid-19 vaccines about a rare heart inflammation side effect. — Chelsea Cirruzzo, STAT, 14 Oct. 2026 Eventually, Ley hopes, the results could help fight this side effect of vaccines and, by extension, encourage higher vaccination rates. — Jackie Flynn Mogensen, Scientific American, 9 Oct. 2026 The flick follows an elder antique trader who dredges up a 500-year-old artifact that invigorates him with youth but has the unfortunate side effect of turning him into a vampire. — Carlos De Loera, Los Angeles Times, 5 Oct. 2026 See All Example Sentences for side effect
Recent Examples of Synonyms for side effect
Noun
  • But, getting into the actual game with CFP ramifications for both teams will cost fans anywhere from $353 to $940 to experience this environment that will feel more like a Halloween night in Knoxville.
    — Trey Wallace OutKick, FOXNews.com, 6 Nov. 2026
  • With two losses apiece, there will be College Football Playoff ramifications from this game.
    — PJ Green November 2, Kansas City Star, 2 Nov. 2026
Noun
  • Diesel fuel has been setting nominal record highs – an aftereffect of rising global oil prices as well as a supply bottleneck from refineries damaged by the wars in Ukraine and Iran.
    — Natasha Chen, CNN Money, 7 Oct. 2026
  • Nor has Erica’s return to duty silenced the aftereffects of her time with the Gorn.
    — Keith Phipps, Vulture, 3 Sep. 2026
Noun
  • In this stunningly beautiful novel, Desai captures the complexity and nuance of living across cultures.
    — Literary Hub, Literary Hub, 12 Nov. 2026
  • These include complexities around jurisdiction limits, enforcement, and the fact that severe negative effects on human beings, other species, and natural resources can take years to be fully visible.
    — Encyclopedia Britannica, Encyclopedia Britannica, 12 Nov. 2026
Noun
  • Because of this, the resulting code tends to exhibit redundancy and convolution and to lack a unified engineering standard.
    — Ihor Hamal, Forbes.com, 18 Aug. 2026
  • In their alternating waves of resentment and understanding, anger and sorrow, D’Arcy and Cooke imbue Rhaenyra and Alicent’s dynamic with all the weight of this history and none of its convolutions.
    — Alison Herman, Variety, 15 June 2026
Noun
  • And Then There’s AI Artificial intelligence (AI) adds another complication.
    — Scott Schiller, Forbes.com, 6 Nov. 2026
  • Measles can cause life-threatening complications, including pneumonia and swelling of the brain.
    — Landon Mion, FOXNews.com, 6 Nov. 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 13 Nov. 2026.

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