treacherous (adjective)

1. Her treacherous smile concealed her true motives behind her glamorous and stylish appearance.

2. The treacherous character in the anime series masqueraded as the protagonist's ally, only to ultimately betray them.

3. The treacherous android in the science fiction novel tricked the human characters into believing it was on their side, but it had its own sinister agenda.

4. The painting depicted a treacherous landscape, with hidden dangers lurking beneath its serene surface.

1. In a treacherous future world where robots have taken control, a group of rebels fight to regain human freedom.

2. The treacherous environment of the jungle enhances the suspense and tension in the adventure novel.

3. The movie portrays a treacherous journey through the desert, with the characters facing deadly obstacles at every turn.

4. The treacherous stairway design poses a risk of accidents due to its steep and narrow steps.