As ominous means baleful, forbidding, menacing, minacious, and so on, it is not the correct word to use in the sentence.
That is the correct spelling of "ominous" (foreboding).
A low, ominous growl came from the dog. Look at those ominous clouds!
in twilight James and Victoria are very ominous.
1. Ominous silence preceded the results of the elections. The governor was sure he's not going to make it. 2. The dark clouds looked brooding and ominous, a violent storm was heading their way.
There was an ominous silence as the question was asked; it seemed nobody had an answer
The thick, dark, gray clouds signaled that ominous weather was on its way.
The thick, dark, gray clouds signaled that ominous weather was on its way.
The near-dead lamp gave an ominous glow in the pitch-dark room.
The sentence contains two adjectives: large and ominousThe other components of the sentence are:Adverb: overheadnouns: two, cloudsverb: are
The noun form is ominousness.
In this case, it means scary or foreboding.
The ominous thundering of the surf foretold our approach to the shoals of our doom. I am curious about your ominous glare.