baleful, forbidding, menacing, minacious, minatory, ominous, sinister, threatening
Meaning: threatening or foreshadowing evil or tragic developments; "a baleful look"; "forbidding thunderclouds"; "his tone became menacing"; "ominous rumblings of discontent"; "sinister storm clouds"; "a sinister smile"; "his threatening behavior"; "ugly black clouds"; "the situation became ugly"
His head was proudly up; he was the incarnation of menacing power and of self-confidence.
Again and again it sounded, the whole air throbbing with it, strident, wild, and menacing.
These he presented to me with a few unintelligible words, and a bearing at once respectful and menacing.
"What do you mean by 'precisely so'?" Ivan questioned him, with a menacing light in his eyes, restraining himself with difficulty.
On seeing D'Artagnan rise, Porthos rose also; these four men were therefore all standing at the same time, with a menacing aspect, opposite to each other.
At this instant the three friends turned, in spite of themselves, a last look on the rock, upon the menacing figure which pursued them and now stood out with a distinctness still.
The darkness had come suddenly, and, to make all things consonant, there was no moon and there were not any stars; clouds had risen of an even and menacing sort, and one could see no heaven.
Usanga did not see him, being too intent upon the unaccustomed duties of a pilot, but the blacks across the meadow saw him and they ran forward with loud and savage cries and menacing rifles to intercept him.