Definition

The quality of being untrustworthy or dangerous, often involving betrayal or deceit.

Example

The treacherousness of the terrain made the hike very risky.

Conversation

I read an article about the treacherousness of some mountain trails.

That sounds scary! I didn’t know they could be that dangerous.

Yeah, it really made me think twice about hiking there.

Good idea! Safety should always come first when you're outdoors.

Synonyms & Antonyms

Root Explanation

Treacherousness is formed from "treacherous" (from Old French *trechier*, meaning to betray) and the suffix "-ness" (meaning the state or quality of). The word describes the state of being treacherous or betraying trust.

Memory Tip

Think of the word 'treachery' which means betrayal, and remember that 'treacherousness' refers to the quality of being betraying or untrustworthy.

Visually Confused Words