serious的比較級：more serious；最高階：the most serious
一、more serious
更嚴重;更加嚴重;嚴重;更嚴肅;更嚴肅的
1、Loss of health is more serious than loss of wealth.
健康的喪失比財富的損失更為重要。
2、He has grown more serious about running for president, although he refuses to show his hand.
儘管他拒絕亮出自己的底牌，他對競選總統一事卻越來越認真了。
二、the most serious
最嚴重;最嚴重的
1、Nutrient problem is one of the most serious problems.
營養問題是最嚴重的問題之一。
2、Our country is one of countries with armour liver the most serious popularity.
中國是甲肝流行最嚴重的國家之一。
擴充套件資料
serious的同義詞：
一、severe
英 [sɪˈvɪə(r)] 美 [sɪˈvɪr]
adj.嚴重的嚴峻的;嚴厲的;劇烈的;苛刻的
She had quite severe bruising and a cut lip.
她身上有嚴重的淤傷，嘴唇也破了。
二、bad
英 [bæd] 美 [bæd]
adj.壞的，不好的;嚴重的;不舒服的;低劣的，有害的
This was a bad case of dangerous driving
這是一起嚴重的危險駕駛案例。
serious的比較級：more serious；最高階：the most serious
一、more serious
更嚴重;更加嚴重;嚴重;更嚴肅;更嚴肅的
1、Loss of health is more serious than loss of wealth.
健康的喪失比財富的損失更為重要。
2、He has grown more serious about running for president, although he refuses to show his hand.
儘管他拒絕亮出自己的底牌，他對競選總統一事卻越來越認真了。
二、the most serious
最嚴重;最嚴重的
1、Nutrient problem is one of the most serious problems.
營養問題是最嚴重的問題之一。
2、Our country is one of countries with armour liver the most serious popularity.
中國是甲肝流行最嚴重的國家之一。
擴充套件資料
serious的同義詞：
一、severe
英 [sɪˈvɪə(r)] 美 [sɪˈvɪr]
adj.嚴重的嚴峻的;嚴厲的;劇烈的;苛刻的
She had quite severe bruising and a cut lip.
她身上有嚴重的淤傷，嘴唇也破了。
二、bad
英 [bæd] 美 [bæd]
adj.壞的，不好的;嚴重的;不舒服的;低劣的，有害的
This was a bad case of dangerous driving
這是一起嚴重的危險駕駛案例。