‚The one who is difficult to get along with‘.
Son of Atri and Anasuya. Durvasa cursed anyone who upset him, even for the smallest thing. However, he was well disposed towards those who behaved well towards him.
All about Durvasa
http://utkarshspeak.blogspot.com/2013/09/sage-durvasa.html
http://hindumythologyforgennext.blogspot.com/2012/03/king-ambarish-and-sage-durvasa.html
http://sushmajee.com/biographies/bio-D/durvaasaa-1.htm