1. people who deliberately obstruct or delay progress by refusing to cooperate or answer questions
Usage: informal

Examples

• The committee accused the witnesses of being stonewallers who refused to provide clear answers.
• Political stonewallers often use delay tactics to prevent legislation from moving forward.
• The investigation was hampered by stonewallers who wouldn’t share crucial information.
• Management labeled the union representatives as stonewallers during the contract negotiations.
• The journalists grew frustrated with the stonewallers who avoided their questions.
• Corporate stonewallers made it difficult for regulators to gather evidence.