What does the word treacherous

mean in the sentence below?

Black ice on a road is treacherous

because it is slick and you can't see it.

hazardous because of presenting hidden or unpredictable dangers.

Explanation:

In this sentence treacherous means that since you cant see the black ice, it threats a hidden danger. And that this is a hazard because you can fall, sip, and cars can slip, fall in a ditch, or lose control of their vehicle because they arent expecting the danger as they cant see it

Presenting hidden or unpredictable dangers