impendingly

This adverb carries a heavy sense of anticipation, almost always linked to an inevitable and negative event. It describes the atmosphere or the manner in which a threat approaches, creating a feeling of suspense or dread. Because of this strong negative connotation, it is rarely used to describe positive upcoming events, such as a wedding or a holiday.

In terms of register, it is a formal and literary term. In casual conversation, speakers are far more likely to use phrases like "about to happen" or "coming up." Using "impendingly" in a relaxed setting can sound overly dramatic or stiff.