noun
Almost exclusively used in the phrase 焦眉の急 (しょうびのきゅう), meaning a matter of great urgency or an imminent crisis. The standalone noun use is rare.
気候変動への対策は焦眉の急だ。
Measures against climate change are a matter of great urgency.
この問題は焦眉の急を要する。
This problem requires immediate attention.