副词

1.稀罕的

2.珍贵的，极好的

3.稀薄的(空气)

4.半熟的(食物)

词形变化

形容词比较级rarer，rarest

名称rareness

英语解释

marked by an uncommon quality; especially superlative or extreme of its kind

having low density

(of meat) cooked a short time; still red inside

recurring only at long intervals

not widely distributed

not widely known; especially valued for its uncommonness