sinister

BrE /ˈsɪn.ɪstə/ AmE /ˈsɪn.ɪstər/

adjective en → es

1 EVIL/UNFAVOURABLE [attributive, predicative] B2

suggesting evil or bad intentions; frightening and threatening

peligroso, siniestro, malvado

  • a sinister look/face/smile

Collocations sinister intentions · sinister atmosphere

  • He gave me a sinister smile.

    Me dio una sonrisa siniestra.

2 DANGEROUS [attributive, predicative] B2

suggesting danger or evil; threatening and frightening

peligroso, amenazante, inquietante

  • a sinister look/face/smile

Collocations sinister warning · sinister prediction

  • The clouds had a sinister appearance.

    Las nubes tenían una apariencia amenazante.