Definition

Suggesting something bad or evil; causing feelings of fear or worry.

Example

The dark alley had a sinister feeling that made her uneasy.

Conversation

Did you see that movie last night?

Yeah, it was really good, but the ending felt a bit sinister.

I know, right? That last scene left me with such an eerie feeling.

Exactly! It made me think twice about watching a sequel.

Synonyms & Antonyms

Root Explanation

Sinister → It originates from Latin 'sinister' (meaning left or on the left side). In ancient Rome, the left side was often associated with bad luck or evil, which is how the word came to mean something ominous or threatening in English.

Memory Tip

Think of the word 'left' — in ancient times, being on the 'left' ('sinister') was seen as unlucky or evil, which helps you remember that 'sinister' means something threatening or ominous.

Visually Confused Words