/ Im5peE(r); Im`pZr/ v [Tn] weaken or damage (sth) 削弱或损害（某事物）: Loud noise can impair your hearing. 巨大的噪音有损听觉. * Today's attack has seriously impaired attempts to achieve peace in the area. 今日发动的攻击严重损害了在该地区谋求和平的努力. * impaired vision 受损的视力. > impairment n [U].