There are multiple definitions - click on the translation that matches your context.

确实的

形容词

full

safe

adjective

Definitions of safe

English

not damaged, endangered, lost, injured, or harmed etc

The family are believed to be safe, but police have been unable to contact them since Thursday.

English

protected from harm or from being hurt, damaged, stolen, or lost etc

The increased policing has paid for itself in terms of keeping people safe.

English

unlikely to cause damage, danger, loss, injury, or harm etc

Are you sure it's safe?