Menacing, foreboding, sinister, portentous, impending, apocalyptic, threatening, dire...
Sinister, menacing.
Ominous.
inauspicious and propitious
Dire, evil, malevolent, mischievous, ominous, perverse, threatening, nasty, or menacing. Those words mean sinister.
threatening, severe, frightening, hostile, menacing, sinister, daunting, ominous
Ominous is an adjective.
power tools. Also dark. Also: raven, ebony, sable, jet, dusky, swarthy, gloomy, sad, depressing, grim, bleak, dismal, ominous
A low, ominous growl came from the dog. Look at those ominous clouds!
That is the correct spelling of "ominous" (foreboding).
The word "ominous" comes from the word "omen". An ominous dream is one which contains signs of what is going to happen in the future.
The noun form is ominousness.
in twilight James and Victoria are very ominous.