adj.危险的;不吉祥的;凶兆的;险恶的;
例句:
The robber had sinister intentions.
那个强盗用心险恶.
He's sinister and ruthless , and has entrapped many innocent people.
他为人阴险毒辣,坑害过很多无辜的好人.
...a sinister and frightening place.
一个邪恶而恐怖的地方