1. a person who deliberately blocks or prevents progress, especially in politics or legislation

1. characterized by deliberate obstruction or resistance to progress

Examples

• The senator was criticized as an obstructionist for voting against every reform proposal.
• His obstructionist tactics delayed the project by several months.
• The committee accused the minority party of obstructionist behavior.
• She refused to be labeled an obstructionist simply because she questioned the plan.
• Obstructionist members of Congress blocked the bill from reaching a vote.
• The company's obstructionist approach to environmental regulations angered activists.