形容词

1. 不安全的；危险的
If a building, machine, activity, or area is unsafe, it is dangerous.

2. 身处险境的
If you are unsafe, you are in danger of being harmed.

3. 证据不足的;证据不可靠的
If a criminal conviction is unsafe, it is not based on enough evidence or is based on false evidence.

1. involving or causing danger or risk
liable to hurt or harm

e.g. a dangerous criminal
a dangerous bridge
unemployment reached dangerous proportions

Synonym: dangerous

2. lacking in security or safety

e.g. his fortune was increasingly insecure
an insecure future

Synonym: insecure

3. not safe from attack

Synonym: insecure