老于世故 Traditional 老於世故 lǎo yú shì gù 🔊 experienced in the ways of the world… + Keep this word Meanings lǎo yú shì gù 老於世故 experienced in the ways of the world (idiom); worldly-wisesophisticated Its characters 老lǎoprefix used before the surname of a…HSK 3于yúin; at; onHSK 6世shìlife故gùhappeningHSK 7–9