He was using the office in a most sinister way.

He is the most sinister and devious of the Incarnations!

Proven to be the most sinister and cunning member in the Company.

They consider it a most sinister and sacred spot, though I do not know why.

Big banks and financial industry groups mounted perhaps the most sinister post-Sept.

Its employers are, in the strictest and most sinister sense, captains of industry.

This varmint would use my body, no doubt, for the most sinister and cruel crimes.

(Ages 10 to 14) Plots are most sinister when something is only a little weird.

At its most sinister, it led to murder.

The detective felt himself warm to the man about whom he had so recently been entertaining the most sinister suspicions.