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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.

She said the doctor told them it was "nothing sinister", and she should return home and rest.

From BBC • Apr. 3, 2026

His angular head topped with a green felt crown; his toothy mouth a sinister, grimacing gash; his eyes blackened with what looks like charcoal.

From Los Angeles Times • Mar. 9, 2026

This fourth problem makes the first three look like sinister, rather than innocent, bureaucratic snafus.

From Salon • Mar. 5, 2026

Miriam is vivacious and energetic but dogged by an unexplained sin from her earlier life—a sin that vests itself in the sinister person of her “model.”

From The Wall Street Journal • Feb. 27, 2026

Encircled by an electric fence with imposing metal gates, Emalia now had a sinister look.

From "The Boy on the Wooden Box" by Leon Leyson