(stiffer, stiffest) more difficult or severe than usual艰难的；激烈的◆We are facing stiff competition from cheap imports.我们正面对来自廉价进口产品的激烈竞争。 (informal) (about a price, etc.) high or too high（价格等）过高的◆There's a stiff $30 entrance fee to the exhibition.展览会门票高达 30 元。firm and difficult to bend or move坚硬的；不易弯曲的◆stiff cardboard硬纸板 SYN inflexible OPP flexible