平安无事
with nothing unpleasant or unusual happening
Despite fears of violence, the demonstration passed off without incident. 尽管担心发生暴力事件，示威活动还是平安无事地过去了。
She gave birth to three children without incident.
The journey to Penang proceeded without incident.
The visit happened as planned and without incident.
The convoy made it across the border without incident.
See also: incident noun