无济于事 wújìyúshì HSK7 to no avail Origin Definitions Defs Strokes Stroke Words Sentences Sents 无 無 wú adjectiveverb to not have to not have; there is no; lack; (as prefix) non-; un-; -less济 濟 jì noun to benefit (bound form) to be of help or to benefit a situation于 於 yú preposition in Indicates a location, scope, or time; equivalent to 在 zài事 shì noun matter matter; affair; thing; event