How to Use "sinister" with Example Sentences

1. Could russia 's sinister fsb spy agency be involved ?
2. That may make the technology seem less sinister .
3. It 's not that our government is bad or sinister .
4. So this drone proliferation isn 't quite as sinister as it may have seemed , right ?
5. People ask , as though I 've just admitted to hoarding old shoehorns or something truly sinister .