noun-modifying (irregular)
Used prenominally to describe a situation, need, or danger that requires immediate attention. Often found in formal or written contexts.
急迫した事情により、会議は延期された。
Due to urgent circumstances, the meeting was postponed.
急迫した危険が迫っている。
An imminent danger is approaching.
From 急迫 (きゅうはく, 'urgency, imminence') + した, the past/prenominal form of する. 急迫 is a Sino-Japanese compound of 急 ('urgent') and 迫 ('press, approach').