膝下无儿 xīxiàwú'ér to have no sons Origin Definitions Defs Strokes Stroke Words Sentences Sents 膝下 xīxià children One's children or offspring.无 無 wú adjectiveverb to not have to not have; there is no; lack; (as prefix) non-; un-; -less儿 兒 ér noun son son; male offspring