1. (adj)uncommon not common or ordinarily encountered; unusually great in amount or remarkable in character or kind Synonyms: rare Antonyms: general, popular, ordinary, common, standard, grassroots, average, democratic, frequent, demotic
2. (adj)rare, uncommon marked by an uncommon quality; especially superlative or extreme of its kind Synonyms: rarefied, rarified, rare, uncommon Antonyms: standard, ordinary, common, frequent, average, democratic, popular, demotic, general, grassroots