guilty of or involving betrayal or deception.
it means out of faith or disloyaly or disfaithfully.
-ous
The correct spelling is "treacherous" It means dangerous.Read more: How_do_you_spell_treturous
That man is treacherous
The treacherous ice is best to avoid The treacherous path through the woods had never been traveled before.
This example of how to use treacherous in a sentence is treacherous. The raging storm on the ocean was treacherous with fifty foot waves. No one could travel on the ocean. When the treacherous hurricane subsided the Coast Guard found many boats damaged and ships were sunk.
The roads were treacherous because of the snowstorm.
A treacherous person is someone who is dangerous and will betray others.
The Treacherous Three - album - was created in 1980.
It was a treacherous hike to the top of the mountain.
"Insidious" means proceeding in a gradual, subtle way but with harmful effects over time. It is often used to describe something that is treacherous or deceitful.
Cold temperatures, a foot of snow, and icy roads made driving treacherous. He enjoys mountain climbing despite treacherous terrain.