threatening attitude; menacing look; angry look
子供は父の剣幕に怯えた。
The child was frightened by his father's angry look.
彼はものすごい剣幕で私を睨みつけた。
He glared at me with a terrifyingly angry look.
客の剣幕に圧倒され、店員は言葉を失った。
Overwhelmed by the customer's furious demeanor, the store clerk was speechless.