obscure(UNKNOWN)phoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticphoneticadjective
1. not known to many people

obscurityphoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticphoneticnoun [U]
  He was briefly famous in his twenties but then sank into obscurity.

This page is cited from Cambridge Dictionaries Online.  For the original, please visit
http://dictionary.cambridge.org/define.asp?key=obscure*1+0