Textual thesaurus for "rare"

(adj) uncommon

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

what is so rare as a day in June-J.R.Lowell; a rare skill; an uncommon sense of humor; she was kind to an uncommon degree

(adj) rarefied, rarified

having low density

rare gasses; lightheaded from the rarefied mountain air