“迟钝的”用英语怎么说

这道菜简直可以恢复迟钝的味觉.Here is a dish that will revive jaded palates.反应迟钝的学生会影响全班的进步.A slow learner can keep back the whole class.他是一位文雅而反应迟钝的人.He was a gentle, rather bovine man....