nefarious
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
AI’s advancing proficiencies—especially for crafting nefarious biological and cyber-based plans—are alarming senior executives at AI companies and the White House.
From The Wall Street Journal ● Jul. 26, 2026
"But if products are finding their way into Russia and used for nefarious purposes, we have to find alternative markets," he told AFP.
From Barron's ● Jul. 24, 2026
For posts beyond the reach of my inbox, there’s a risk in putting that information out there because nefarious sleuths can figure out more than you think.
From MarketWatch ● Jul. 22, 2026
“It’s only if you’re utterly cynical and ignore all the evidence that you make a claim that, in fact, these cases are attributable to nefarious criminal intent.”
From Salon ● Jul. 7, 2026
And you may or may not have been given my number as part of my ex-friend’s nefarious revenge plot.
From "Bye Forever, I Guess" by Jodi Meadows
Vocabulary lists containing nefarious
Grade 9, List 4
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Even More Negative Words to Describe a Person
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Coraline
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