treacherous
adjective
1. dangerously unstable and unpredictable
- treacherous winding roads
Similar word(s): dangerous, unsafe, unreliable
2. tending to betray; especially having a treacherous character as attributed to the Carthaginians by the Romans
- the fiercest and most treacherous of foes
- treacherous intrigues
Similar word(s): unfaithful, perfidious, punic
Sentences with treacherous as an adjective:
- a treacherous mountain trail