Sinister
/ˈsɪn.ɪ.stɚ/ adjective easyGiving the impression that something evil or harmful is about to happen.
A sinister silence fell over the house just before the storm hit.
Memory Trick
Comes from the Latin word for 'left,' since left-handedness was once superstitiously linked to bad luck or evil — think of an ominous 'left-hand path.'