rebarbative |rəˈbärbətiv|

adjective formal

unattractive and objectionable : rebarbative modern buildings. ORIGIN late 19th cent.: from French rébarbatif, -ive, from Old French se rebarber ‘face each other “beard to beard” aggressively,’ from barbe ‘beard.’

Via the OSX dictionary, thanks to @jeb.

September 02, 2010, 9:25am