ominous

In the back of my mind I was wondering how much time we had before there might be an ominous knock at the door.

In The Lodger an ominous character paced the floor, which Hitchcock constructed of glass.

He wrote that he deserved to die and alluded to a ominous plan that he had backed out of twice already.

The drumbeat and synth bass are as insistent as they are ominous.

Other hints at the changing war are less ominous, but obnoxious nonetheless.

Also, some ominous comments on what armies spend and what Governments scrimp:—that is ammunition.

They were followed by a little dried-up Italian army surgeon, who carried under his arm an ominous-looking black case.

Tony was gay, light-hearted as usual, belying Mrs. Haughstone's ominous prediction.

The glowing heavens, luminous athwart the clouds of fine, suspended sand, laid this ominous hint of dream upon the entire day.

Only the western heavens, where the sun sank in a red mass of ominous splendour, was alive with energy.