ominous

adj. /ˈɑː.mə.nəs/ C1

不祥的；预兆不佳的

Suggesting that something unpleasant is going to happen.

仙境例句

There was an ominous splash nearby, and something large came swimming towards Alice.

附近传来一声不祥的水响，有个大东西正朝爱丽丝游过来。