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Definitions

sinister

[sin-uh-ster] / ˈsɪn ə stər /


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.

The most striking part is that no one had to do anything sinister to make this happen.

From The Wall Street Journal • May 19, 2026

But the picture-postcard views mask a more sinister reality.

From Barron's • May 5, 2026

The original’s Cylons were the show’s answer to George Lucas’ stormtroopers in “Star Wars,” only shinier, with sinister red lights roving back and forth where their eyes should be.

From Salon • May 5, 2026

For neurologist Taka, not his real name, the delusions took an even more sinister turn.

From BBC • May 2, 2026

That might not have happened without Europe’s sinister gift to other continents—the germs evolving from Eurasians’ long intimacy with domestic animals.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond




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