The circumstances in which he makes this little speech are particularly sinister.
By itself there would have been nothing particularly sinister about it; things would have been no worse than they already were.
On the other hand, it did not seem particularly sinister.
The black stone of the fortress walls looked particularly sinister, even in the sunlight.
Bryn Terfel makes the title role particularly sinister but he sings like an angel.
Particularly sinister lethal globs are sent down by a flying-saucer like craft which transform into monsters that eat the citizens.
Kashlueque is deeply involved in Capulous criminal activities, and is particularly sinister in his own right.
Nor is there anything particularly sinister about it.
Comfortable only in the presence of authority, he regards the civilian sniper as something particularly sinister.
But apart from that, the fact that it's The Lady who's prowling around out there doesn't strike me as being particularly sinister.