noun, noun or participle which takes 'suru'
successful completion; ending without incident; finished without a hitch
Used for events, projects, or processes that conclude safely and successfully, often with a sense of relief. Common in formal announcements and reports.
式は無事終了しました。
The ceremony ended without incident.
プロジェクトが無事終了してほっとした。
I was relieved that the project was completed successfully.