He was beginning to think he was a jinx.

他开始认为他是个不祥之人。

《柯林斯英汉双解大词典》

I'm convinced there's a jinx on this car.

我看这辆汽车是灾星。

《牛津词典》

Eg: I think this watch is a jinx to me.

看来这块手表给我带来坏运气。

youdao

Our covers over the years have turned out to be pretty good flags, despite the legend that such magazine prominence is a jinx.

FORBES: One of Those Magazine Covers I'd Like Back

"It's not a jinx, it's not a hoax or anything like that, we need personalities to go and clear the ball, and win the ball ... strong personalities who want it in the back, " Toronto FC coach Ryan Nelsen said.

WSJ: Cahill scores twice to lift Red Bulls at Toronto

Is it simply a jinx?

CNN: Presidential jinx for Big Ten graduates