expression, godan verb (-ru)
develop into a serious incident; become a big deal
Used when a minor problem escalates into a major issue. Often appears in negative contexts (e.g., 大事に至らずに済む).
小さなミスが大事に至ることもある。
A small mistake can sometimes develop into a serious incident.
幸い、事故は大事に至らなかった。
Fortunately, the accident did not become a major incident.