the GNU version of the Collaborative International Dictionary of English
n. One who obstructs or hinders.
The Century Dictionary and Cyclopedia
n. One who or that which obstructs, hinders, or retards. Also obstructor.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. any structure that makes progress difficult
n. someone who systematically obstructs some action that others want to take
Word Usage
"" I was extraordinarily mistrustful of District Attorney Rice ' s sudden change from obdurate obstructer to newfound champion of justice " during her campaign, said Friedman attorney Ron Kuby ."