Something that is coincidental is the result of a coincidence and has not been deliberately arranged.
Any resemblance to actual persons, places, or events is purely coincidental.
如与实际的人物、地点、事件有所雷同,纯属巧合。
I think that it is not coincidental that we now have arguably the best bookshops in the world.
我们现在可以说是拥有全世界最好的书店,我想这并非偶然。