Definitions

1. adjective

giving warning or serving as a warning; threatening or ominous.

“The minatory tone of the voice sent shivers down her spine.”

2. noun

a sign or indication of something to come; an omen.

“The dark clouds formed a minatory presence above the city.”

3. adverb

in a threatening or ominous manner.

“The storm raged in minatory silence before the tempest.”