sinister
si
ˈsɪ
si
nis
nɪs
nis
ter
sister

Definition & Meaning of "sinister"in English

sinister
01

giving the impression that something harmful or evil is about to happen 

Grammatical Information
Composition
Simple
qualitative
Superlative
most sinister
Comparative
more sinister
gradable
Examples
The abandoned mansion had a sinister aura about it, as if it held dark secrets within its walls. 
02

suggesting or indicating evil, harm, or danger 

Examples
His sinister schemes aimed to undermine his rival's reputation. 
03

located on or relating to the left side 

Examples
In heraldry, a lion facing the sinister side appears to look leftward. 
04

stemming from indirect or deceitful motives 

Examples
The nobleman's rise to power was rumored to involve sinister dealings. 
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