无穷小 Traditional 無窮小 wú qióng xiǎo 🔊 infinitesimal; infinitely small + Keep this word Meanings wú qióng xiǎo 無窮小 (math.) infinitesimal; infinitely small Its characters 无wúnot to haveHSK 4穷qióngpoorHSK 5小xiǎosmall; youngHSK 1