treacherous

adjective
1
that cannot be trusted; intending to harm you
خیانت‌آمیز, بی‌وفا, خیانت‌کار, غدار, غدّار
synonym deceitful
2
dangerous, especially when seeming safe
خطرناک, فریبنده, پرخطر
The ice on the roads made driving conditions treacherous.
the mountain’s notoriously treacherous rocky crest