asperity

noun [具体名词]（表面的）粗糙；（气候等的）严酷；艰苦的条件；（性格）粗暴

"I told you Preskel had no idea," remarked Kemp with some asperity. "
我跟你说过普瑞克一无所知"，坎普有点儿不耐烦地说。