落空 luòkōnglàkòng to come to nothing Origin Definitions Defs Strokes Stroke Words Sentences Sents 不落空 bùlàokōng to not be in vain to not be fruitless; to result in some gain or achievement希望落空 xīwàngluòkōng hopes are dashed to fail to attain one's hopes; for expectations to fall through