I. uncommon adjective
1.
Synonyms: infrequent , few, occasional, rare, scarce, seldom, semioccasional, sporadic, unfrequent
Contrasted words: commonplace, everyday, ordinary
Antonyms: common
2.
Synonyms: exceptional 1, extraordinary, rare, singular, unimaginable, unique, unordinary, unthinkable, unusual, unwonted
Antonyms: common, commonplace
II. ||uncommon adverb
Synonyms: extra , extremely, rarely, uncommonly, unusually