1. the quality of being threatening or suggesting that something bad will happen

Examples

• The ominousness of the dark clouds made everyone hurry inside.
• There was an unmistakable ominousness in his tone when he delivered the warning.
• The silence in the courtroom had an ominousness that made her nervous.
• The ominousness of the situation became clear when the sirens started wailing.
• She couldn’t shake the feeling of ominousness that hung over the abandoned house.
• The ominousness of his final words left everyone deeply unsettled.