未能 wèinéng fail to Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 由于天气原因,飞机未能按时起飞。 yóuyú tiānqì yuányīn, fēijī wèinéng ànshí qǐfēi. Due to weather conditions, the plane failed to take off on time. Source: Dong Chinese Dictionary