untimely
adjective formal uk/ʌnˈtaɪm.li/ us/ʌnˈtaɪm.li/
（坏事的发生）过早的;不合时宜的
Something bad that is untimely happens unexpectedly early or at a time that is not suitable.
It was this passion for fast cars that led to his untimely death at the age of 43. 对飙车的狂热致使他43岁就英年早逝。
Synonym: ill-timed