Use 'menacingly' for an atmosphere where something bad seems about to happen. The soundtrack grew louder and more menacingly as the hero approached the villain's lair.
Pro Tip 2/3
Emotional Impact
'Menacingly' adds a feeling of fear or anxiety to a description. The old house looked menacingly dark, even in the middle of the day.
Pro Tip 3/3
Natural Threats
'Menacingly' is not just for people; it can describe threatening natural phenomena too. The volcano smoked menacingly, threatening the nearby villages.