n. Opposing act or action; whatever frustrates or baffles or tends to defeat one's purposes, wishes, designs, etc.
Perverse; contrary.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. an act of hindering someone's plans or efforts
adj. preventing realization or attainment of a desire
Word Usage
"Friendship aside, the 47-year-old Spagnuolo played an integral role in thwarting the New England Patriots 'perfect season in last year's Super Bowl and had another successful year last season despite dealing with injuries to key personnel."