grievous/ˈgri.vəs/形容词比较级more grievous形容词最高级most grievous1严重的, 重大的of great gravity or crucial import; requiring serious thought同义词： weightyheavygrave2严重的, 痛苦的significantly threatening in way that makes one feel scared or anxious同义词： severelife-threateningseriousgravedangerous3残忍的, 可怕的shockingly brutal or cruel同义词： atrociousmonstrousflagitious4令人悲痛的, 痛苦的causing or marked by grief or anguish同义词： heartbreakingheartrending