siniestro
Meanings
Adjective
1. sinister
2. unhappy
3. malicious, evil
4. left, left-hand (direction) (dated)
5. sinister, sinistral (heraldry)
Examples2
Era muy siniestro.
It was really scary.
Lo último que vi fue su siniestro rostro.
The last thing I saw was his spooky face.