This is the 475th most frequent Vietnamese word.
rủi
"Rủi" means "unlucky" or "unfortunate."
In this sentence, "rủi" is part of the word "rủi ro," which means "risk," and it implies an unfavorable or undesirable event.
Nếu bạn không chuẩn bị trước, rủi ro sẽ cao hơn.
If you are not prepared beforehand, the risk will be higher.
In this example, "rủi" is used as part of the phrase "điều rủi," meaning "misfortune," referring to negative events that occur in life.
Chúng ta không thể tránh hoàn toàn những điều rủi trong cuộc sống.
We cannot completely avoid misfortunes in life.
Here, "rủi" is used in the structure "rủi thay," meaning "regrettably" or "unluckily," showing an unexpected and unfortunate event.