coincidental
adj. 巧合的；符合的；暗合的；一致的
例句
The concurrence of their disappearances had to be more than coincidental.
他们一起消失应该不是巧合。
《柯林斯英汉双解大词典》
I suppose your presence here today is not entirely coincidental.
我认为你今天来这里不完全是碰巧。
《牛津词典》
It's purely coincidental that we both chose to call our daughters Emma.
我们俩都给自己的女儿取名叫埃玛，这完全是巧合。
