adj.on or starting from the wearer's left
He was a sinister and crafty speculator
As well As the sinister landlord Huang Shiren.
Jack makes my flesh crawl:his cat - like walk,his husky voice,his Black clothes,his perpetual grin - - there's something really sinister about him.
Apart from the fact that he was at this moment disguised as a clergyman, there was nothing very sinister about Cyril Boggis
Bend sinister:a band passing from the upper sinister corner of an escutcheon to the lower Dexter corner.
He was a person with sinister designs.
He showed his sinister motive at last.
he's sinister and ruthless, and has entrapped many innocent people.
But for HIM the more sinister development is that such language has taken root in political discourse.
His sinister threat chilled(ie frightened)all who heard it.