This is the 7347th most frequent Chinese word.
致命性
The quality of being lethal or fatal.
In this sentence, '致命性' refers to the lethality or capacity to cause death. It is used as a noun to indicate the deadly nature of a disease.
这个疾病的致命性使得许多人感到恐惧。
The lethality of this disease makes many people feel afraid.
Here, '致命性缺陷' indicates flaws with a potential to cause serious problems. It demonstrates usage in a compound noun, combining '致命性' with '缺陷' (flaw).
在设计产品时，我们需要避免任何可能的致命性缺陷。
When designing products, we need to avoid any possible fatal flaws.
In this case, '致命性' is employed to describe the inherent risk or fatal nature associated with transportation methods. It is contextually tied to the dangers specific to the subject matter.