suru verb (irregular), expression
face danger; be in imminent crisis
A stiff, literary expression used in formal writing or elevated speech to describe a situation on the brink of disaster. The kanji 危殆 itself is uncommon; the phrase is often replaced by simpler alternatives like 危機に瀕する in modern usage.
その国は財政が危殆に瀕している。
The country's finances are facing imminent danger.
会社は倒産の危殆
The company was on the verge of bankruptcy.