n. A deliberate policy of obstructing something, especially a political process or body.
the GNU version of the Collaborative International Dictionary of English
n. The act or the policy of obstructing progress.
The Century Dictionary and Cyclopedia
n. The principles and practices of an obstructionist, especially in a legislative body; systematic or persistent obstruction or opposition, as to progress or change.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. deliberate interference
Word Usage
"More obstructionism from the right-wing nut jobs promoting their social Darwinist agenda."