English Dictionary

Define dictionary terms easily in our powerful online English dictionary.

Searching for...

No matching words found

Try a different search term or browse the dictionary

Definition sinister in British English

sinister adjective

adjective
/ˈsɪnɪstə(r)/
1

threatening to do harm or to do something evil

Example

a sinister and dangerous criminal who has finally been apprehended

Example

There's a sinister feeling about this old abandoned house.

Synonyms and related words
Definition sinister in British English