s threatening or foreshadowing evil or tragic developments
s presaging ill fortune
a. 恶兆的, 不吉利的, 预兆的
1. The dark clouds in the sky looked ominous before the storm.
天空中乌云密布，看起来在暴风雨来临前很不吉利。
2. She received an ominous warning about the dangers of hiking alone.
她收到了一个关于独自徒步旅行危险的不祥警告。
3. The silence in the abandoned house felt ominous and unsettling.
废弃房子里的沉默让人感觉不祥和不安。