untimely (adj.)youdaoicibaDictYouDict[untimely 词源字典]
1530s, "coming before the proper or usual time," from un- (1) "not" + timely (adj.). Similar formation in Middle Danish utimelig, of weather, etc. Old English had untidlic "unseasonable." Related: Untimeliness.[untimely etymology, untimely origin, 英语词源]