Definition of threatening
: expressing or suggesting a threat of harm, danger, etc. <received a threatening message> <a threatening manner> : indicating or suggesting the approach of possible trouble or danger <saw threatening clouds on the horizon>
threateninglyplay \ˈthret-niŋ-lē, ˈthre-tən-iŋ-\ adverb <gestured threateningly>
First Known Use of threatening
Seen and Heard
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