Sinister

As an Adjective

1. Giving the impression of something evil, harmful, or threatening (e.g., a sinister smile).
2. Evil or wicked in nature or intent (e.g., a sinister plot).
3. Unlucky or unfavorable (archaic usage, e.g., a sinister omen).

Word History

The word sinister comes from the Latin sinister, meaning “left” or “on the left side.” In ancient times, the left side was often associated with bad luck or evil, leading to the modern meaning of something dark, threatening, or malevolent. Over time, it lost its literal connection to direction and became a term for danger and wrongdoing.

Examples

1. The villain’s sinister laugh sent chills down their spines.
2. He had a sinister plan to take over the company.
3. Dark clouds gathered in a sinister formation.
4. The abandoned house had a sinister atmosphere.

Synonyms

Menacing, evil, ominous, threatening, malevolent

Related Words

Dark, eerie, foreboding, wicked, nefarious

Antonyms

Innocent, harmless, benevolent, friendly, good