Sinisterness
n. sinister（不吉利的, 不祥的）的名词形式
✅ 同义词
🗣️ 情景例句
He invests his money in the stock market, dreaming of huge profits.
他把钱投资在股市中， 梦想从中获暴利。
I have great difficulty in understanding him.
我觉得很难理解他。
Just relax.
放松一下。